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SiegCeci is the het ship between Cecilia Schariac and Siegfried Kaslana from the Honkai Impact 3rd fandom.
Canon[]
Cecilia Schariac is known for her gentle, selfless nature. Despite the horrors of the Honkai, she remained steadfast in her desire to protect others, often placing the safety of others above her own. Her sweet and innocent demeanor shines through even in the darkest moments, always trying to see the good in people and never giving up hope. Though cautious in battle, she shows great strength and determination. In the past, Cecilia carried a quiet sadness within her, burdened by the weight of her responsibilities—until she met Siegfried Kaslana. With him by her side, her days became brighter, and she began to show a more cheerful and open-hearted side.
Siegfried Kaslana, often referred to as Ziggy, is an easygoing yet fiercely determined man. Though playful and flirtatious on the surface—especially when spoiling his daughter—his heart carries the weight of many battles and painful farewells. He is stubborn and passionate, someone who follows his convictions no matter the cost. His interpretation of the Kaslana Oath centers around protecting the people he loves over blind duty to the world. Though he originally rejected the concept of self-sacrifice, he eventually grew to understand and respect Cecilia’s choice, even if it meant losing her. Despite his rebellious streak and distaste for strict authority, Siegfried’s love for Cecilia always grounded him, and her memory continued to inspire his actions long after her passing.
Second Eruption[]
Second Eruption 12[]

Siegfried catches Cecilia from the sky.
They first meet when Cecilia falls from the sky from a battle with Welt Yang and landed unconsciously against Siegfried Kaslana and was brought to his home later.
Second Eruption 13[]
Siegfried asked himself why he was even thinking about this—why he brought Cecilia home in the first place. As he noticed her battlesuit, he assumed she might be a Schicksal Valkyrie. Still, he told himself he couldn’t just leave her alone in the wilderness—after all, a true ninja like him would never do something like that. Cecilia slowly woke up and asked where she was. Siegfried replied that she was in his home and explained that she was badly hurt the night before, so he carried her there. He reassured her not to worry, adding with a smile that he wasn't a bad guy.
He then happily introduced himself to her, calling himself Siegfried and telling her she could also call him "Ziggy." He almost told her he was a ninja but quickly changed his story, claiming instead that he was a private detective who helped the locals fight off the Honkai. He laughed awkwardly afterward, thinking he probably sounded really lame.
Siegfried then asked if she was hungry and offered her some fish soup that he had made himself. Cecilia thanked him politely and addressed him as "Sir Siegfried." When he handed her the soup, she commented that it was cold and sour—but still ate it without complaint. Siegfried was surprised by how much Cecilia seemed to trust him—and his cooking—even though he himself had trouble eating it. When he reminded her to just call him Ziggy and asked who she was and what had happened when she fell from the sky the previous day, Cecilia simply assumed that he talked a lot.
Cecilia apologized to Siegfried for not introducing herself sooner, and finally told him her name. She then mentioned that she couldn't say much about what happened the previous night—there were things she wasn’t ready to explain. She added that she had two friends with her and asked if he had seen them. Siegfried shook his head and replied that she was the only one who fell from the sky. Cecilia then quietly muttered to herself, hoping Cheng and Pat were okay. Siegfried reassured her, saying she didn’t need to talk about anything she wasn’t ready to share. He told her his place was safe and that she should focus on resting and getting better. But Cecilia shook her head and said she couldn’t stay. She called him “Sir Sieg” again, but quickly corrected herself with a soft “Ziggy,” and thanked him for his kindness—adding that she had to return to the base.

Siegfried envading to Cecilia's personal space.
Siegfried was disappointed and remarked that she was putting her mission above her own life—something he hated seeing people do. He then said there was a change of plans. He offered to give her a ride back to her base, pointing out that she was injured and out of money, so it would be difficult for her to get around. However, Cecilia politely refused, saying she didn’t want to trouble him any further. Siegfried stepped into her personal space, placing a hand on his chest, and reassured her not to worry. He called her “Milady” and reminded her that he was a private detective—escorting people from time to time was part of the job. When she began to protest, saying something about her base, he immediately cut her off, insisting he really wanted to see her back safely—so her boss could pay him back for all the trouble he went through. She repeated his words, and in her thoughts, she noted that Siegfried clearly had no idea who he was dealing with.
Siegfried then counted on his fingers to three, saying that private detectives don't work for free—there's payment due for the first aid treatment, lodgings, and the super expensive fish soup she had earlier. That would be thirty thousand marks. Cecilia repeated again that he really had no idea who he was dealing with. Siegfried then winked at her and said that a ninja like him better get paid, or she’s not getting back to the base. She then said, “Fine, I don’t want to scare you,” and asked if he knew where her base was.

Siegfried falls inlove with Cecilia.
Cecilia then gets ready to go outside by wearing a dress Siegfried gave her and cutting her hair short to go unnoticed by potential attackers. Before they go, Siegfried questions Cecilia's haircut, in which she asks if it looks weird, which makes Siegfried fall in love for her and tell her that it looks "really fine".
On their way to the base on the bike, Siegfried lets Cecilia visit the town, which leaves her impressed, and Siegfried recommends her to stay there for a day, in which Cecilia refuses because she has to go back to base as soon as possible, despite wanting to visit further. Soon, Cecilia notices that Siegfried's bike handle broke seemingly on accident and would need to be taken at the shop to be repaired, therefore delaying her return, in which Cecilia does not mind.
Second Eruption 14[]
After bringing the broken bike handle to the shop, Siegfried claims that the reparation will take a day and proposes Cecilia to explore the town, which Cecilia accepts. As they visit the place, they go to libraries or shopping, which Cecilia enjoys. Siegfried, wanting to have fun with her further, brings her to an arcade, and Cecilia is greeted by a janitor "Anya" who thinks of her as a girlfriend, which leaves Siegfried embarrassed.

Cecilia and Siegfried blushing.
In the arcade, Cecilia is surprised to see Siegfried play a shooting game and enter the top 3 in the leader board behind 2 other players. Cecilia tries the game at her turn, surpassing Siegfried and the 2 other best players of the game, as she takes 1st place in the leaderboard thanks to her Valkyrie abilities. Both of them soon try other games such as racing and fighting, but Cecilia always manages to surpass Siegfried in them. After playing video games, Siegfried and Anya introduces Cecilia to a guessing game, in which the player has to put their hand in a giant HOMU's mouth which will ask questions, and whenever the player answers wrong, the giant HOMU will grow teeth and bite the player's hand. Siegfried decides to join in, but Cecilia worries about him due to the game sounding dangerous. As Siegfried loses the game by answering incorrectly to a question and is about to get bitten by the giant HOMU, Cecilia charges and pushes Siegfried to prevent him from being hurt by the giant HOMU, not knowing that the teeth of the HOMU are made of soft sponge. Cecilia and Siegfried both get embarrassed from being too close to each other.
Second Eruption 15[]

Later after vising the arcade, Siegfried and Cecilia go into a cafe to eat dinner. Cecilia eats a wurst meal for the first time and likes it, claiming that it is "really good", and thanks Siegfried for letting her visit the town and giving her her "happiest 2 days of her life" while deciding to cherish those moments forever. Siegfried then recommends her to take her to other places in the future, but Cecilia refuses, claiming that the base won't allow it. However, she then hears about Siegfried's escape story from his house, and Cecilia gets impressed when Siegfried claims that he can teach her how to leave the base like a true ninja.
Siegfried further tells Cecilia what they're going to do once she escapes the base, and he offers his hand, telling her that he will meet her at the launch party after the release of a game "Citadel Apocalypse." Cecilia is about to grab his hand in return, before remembering the test, which enhanced her body in exchange for not being able to be away from Schicksal HQ for too long. At the time, Theresa Apocalypse tried to stop Otto from giving the test before learning that Cecilia had already volunteered for it. Theresa then asks her if she really did agree to Otto's test, and Cecilia admits that she did, claiming that she grew up in the HQ and doesn't need to leave it.
After looking at those memories, Cecilia gets hurt in her heart due to the test, and tries to leave as she cries, promising Siegfried that he will get paid, until she hears about him wanting to bring her to an action movie, "Arahato: Chaos Blade", he had planned ahead. Cecilia doesn't refuse, as the movie suddenly reminds her of a toy she saw in a claw machine at the arcade, sees Siegfried excited for it and notices that she has 20 minutes before she has to leave. Cecilia goes to the arcade to obtain the toy from the claw machine to give it to Siegfried, telling him on her way that she will be back for the movie.
Second Eruption 16[]

In the arcade, Cecilia manages to catch the toy in the claw machine, but doesn't get to bring it out. She then meets Lieserl Albert Einstein who kicks the machine to take the toy out and explains to Cecilia how it works. Cecilia thanks her for her explanation and for giving her the toy, but then suddenly falls unconscious due to a sleeping gas Einstein made. After Einstein took a sample of her blood, Cecilia wakes up and runs to Siegfried who fainted in the same alley after his bad encounter with Welt, leaving him weak but still alive.
As she holds Siegfried, Otto suddenly appears at her location and orders her to go back to HQ. Cecilia, crying, hears Siegfried's words about wanting to bring her back to the arcade and beat her in a game, but Cecilia tells him that he already won.
Second Eruption 17[]

SiegCeci reunion.
Two years later, Cecilia is seen getting ready for training again, but can't stop remembering about Siegfried. She regrets not following him, but still accepts having spent the good times together, before being called by Theresa to follow her to Schicksal training cabin. At the training cabin, Cecilia cries as she finally meets Siegfried again, hugging him impatiently and kisses him.
Cecilia sits next to Theresa on a bench to thank her for allowing her daughter, Kiana, to have fun, claiming that she likes her in her costume. Cecilia then suggests Theresa to come over her house to try her husband Siegfried's cooking, which Theresa refuses as she is scared, and watches her husband play with her daughter.
Later, while her husband is on a mission, Cecilia comes back from shopping and meets Otto in his failed solium body, which gave him a child's appearance. While she doesn't recognize him, she still brings him at her house nonetheless and allows him to play with her daughter as she prepares a meal for them.
Second Eruption 22: The Launch[]

Cecilia and Kiana calls Siegfried for a video call.
Subsequently, after her husband is about to depart for the moon, Cecilia video calls him with Kiana in her arms and after her daughter is done talking with him, Cecilia lets her play, telling Siegfried that she is worried for him, in which he answers that it will be fine, despite having some hesitations, and ends the call. Cecilia is then seen as a fragment of memory behind Siegfried to cheer him up and tell him that she will stay with him.
Second Eruption 23: Moonflight[]

Cecilia and Kiana watches Siegfried launch to space.
As Siegfried launches to the moon, Cecilia is seen with Kiana in her arms looking at him fly to space.
Second Eruption 31: Counter Offensive[]
At a later date, Cecilia calls Lixue through telephone, who tells her that Shub-Niggurath is safe, and she thanks Lixue for protecting Niggurath. After the call ends, Kiana asks her mother when Siegfried coming is coming back, in which Cecilia suggests that she sleep so her father can come back sooner. After leaving Kiana asleep in her room, Cecilia meets Amber, who calls her to prepare for the Second War.
Second Eruption 50: Happy Family[]
During their fight at Southern Siberia, Cecilia suddenly gets dragged into a portal while she leaves Abyss Flower behind, entering an illusion. In the illusion, Cecilia is seen proud of her daughter who grew up as a teenager wearing the Winter Princess costume, and tells her a "magic word", which is "Ich liebe dich.", standing for "I love you." in German. Later in the illusion, Cecilia along with Theresa and Siegfried are seen celebrating Kiana's birthday.

Siegfried spoils his daughter Kiana, which disappoints Cecilia due to their daughter's midterm results.
As Siegfried tells her daughter that she bought her a "DS4" which is under her bed, Cecilia notices it and gets disappointed at how her husband bought her daughter a video game console despite her midterm results, which will end up worsening. Kiana then begs her to be allowed to play the DS4, which Cecilia accepts but only for 1 hour. As Kiana goes to play with the DS4, Siegfried decides join in with her, but Cecilia stops him and tells him to do the dishes.

Later, after Sirin arrives in the illusion and meets Siegfried who angers at her, Cecilia invites her to the birthday party despite her feeling unsure. She then hugs Sirin, as the Herrscher of the Void cries after eating a birthday cake Cecilia left for her. Afterwards, while Sirin questions about the illusion in her mind on a bed, Cecilia comes next to her and reassures her by telling her that she shouldn't have left her alone while organizing Kiana's birthday party and hugs her from behind, making her fall asleep. The next day, after she gave her the breakfast, and while Siegfried and Kiana are playing the DS4, Cecilia takes Sirin for shopping at a mall.
Second Eruption 51: The Hug[]
At the mall with Siegfried, as he laments his bank account's declining balance, Cecilia explores the shops with Sirin and buys a chocolate ice cream for her, a pepper mint one for Siegfried and a strawberry one for herself, and plenty of other activities like trying/buying clothes and petting cats with her. However, as Sirin is about to show off a red and white dress she tries, she backs off, and Cecilia notices that she is still angry before the mall explodes. While glass shards come towards Sirin, prompting her to dodge the shards, Cecilia charges and hugs her to protect her from glass shards while a shard grazes her own cheek, telling Sirin the magic words, "Ich liebe dich.". Thereafter the mall incident, which was revealed to be a gas incident, Cecilia is seen sitting next to Sirin in a waiting room as she hugs her.
Second Eruption 55: Wake Up Call[]

Later at night, Cecilia notices that an attack is happening at her house and saves Siegfried who was struck by a Void Lance. She then begs Sirin to stop and tries to reassure her as she gets even angrier, until Welt Yang appears suddenly and escorts Cecilia and Siegfried away. After running away as they try to treat Siegfried, Cecilia worries about him dying in the illusion world, which would end up incapacitated in the real world, revealing that she was aware that she was in an illusion all this time thanks to her training with Fu Hua and Fenghuang Down. Cecilia then asks Welt about his identity as she hesitates about either convincing Sirin to free them from the illusion world or finding a way to knock her out, until Sirin appears once again in front of them and Welt orders her to leave the illusion world with Siegfried as the Selene opens a portal for them and fires at Sirin, which momentarily stuns her.
Second Eruption 56: Alea Iacta Est[]
Following the escape from the illusion world, Cecilia wakes up on the Tower of Babylon, along with Siegfried in front of Theresa, who was waiting for them to wake. After Sirin also woke up from the illusion and attacked Einstein and the Selene, Cecilia throws the Abyss Flower at Sirin and entangles her with its trees, and she gets worried at her as Sirin gets angry about the drama in the illusion world and unleashes an explosion while dragging Siegfried and Cecilia in an infinite corridor dimension trap that kept them separated.
While she tries to escape the dimension, Cecilia runs in one direction while calling for Theresa and Siegfried, but fails and comes back to the same place she landed at, trapped as she worries about her husband until the infinity corridor breaks. Leaving the corridor, she comes to the sight of an unconscious Siegfried in his MANTIS form with the Cleaver of Shamash.
After Siegfried wakes up and tells her to leave the location to save herself, Cecilia refuses to leave him behind, and as they are about to get hit by Honkai blocks from an outbreak of Sirin's Void Cascade, they are protected by the Selene that creates a force field for them.
Second Eruption 64: Ich liebe Dich[]

While they are protected, Siegfried gets ready to sacrifice himself to stop the Honkai outbreak and seal Sirin's core. Cecilia starts to worry about him and the Honkai radiation increasing. Not wanting Siegfried to die, she decides to sacrifice herself instead and leaves the force field, lying to Siegfried that she will be fine. On her way, she remembers Otto's observations and information on her Schariac blood that is revealed to be able to temporarily neutralize the Honkai, therefore killing a Herrscher. However, using too much of it will also kill her.
Nonetheless, Cecilia arrives at the field near the Void Cascade, and after she reminds herself of her daughter Kiana and her husband Siegfried, Cecilia, with her blood and Black Abyss White Flower, unleashes "Sacer Sanguis: Lilium Sanguineum", and throws it at Sirin, therefore neutralizing the Honkai in the cascade.

Soon, after Cecilia's and Siegfried and Judgement of Shamash - Might of An-Utu's attacks hit on the cascade, Cecilia is seen with Siegfried on her lap, crying at him as she is sorry for not being able to make it through the war alive with him and telling him to take care of Kiana. She then goes away, leaving the Abyss Flower with him in order to protect him with its trees, knowing that she will die soon due to her blood loss and Otto's fission missiles arriving at her position.
Afterwards, Cecilia goes towards Sirin and hugs her from behind on a field of flowers, and while the missiles are about to explode at their position, Cecilia tells Sirin that she tried to be her mother in the illusion world because she saw her pain there, and therefore will spend her last moments without leaving her alone as she couldn't do much for her back then. As both of them share a moment of warmth together, Cecilia tells Sirin her magic words for the last time, "Ich liebe dich.", before she dies from the explosion of the nukes.
Childrens[]
- Main article: Kaslana Sisters

Kiana Kaslana is the biological daughter of Siegfried Kaslana and Cecilia Schariac. Like her clone counterpart, Kiana has white long hair and light blue eyes. She usually wears a white pajama dress, but in Sirin's illusion, she wears the Winter Princess costume, a light blue crown, a black and blue cape and a white and light blue dress.

K-423's introduction - Second Eruption 66
Created by Otto Apocalypse as a clone of Kiana Kaslana and Sirin. Although Siegfried took care of her, he didn't acknowledge her at first because of her role in him losing the original Kiana. However, on her eleventh birthday, after she risked her life to defend him, he realized how she upholds the Kaslana Oath and named her Kiana Kaslana. Kiana never got to meet Cecilia but regards her as her mother and longs to be with her.

Kiana and Durandal
Durandal is the original Kiana Kaslana. In the mission to save K-423, she was hit by debris and fell from the aircraft they were using to escape. She was grievously injured, but Otto didn't need to create a Soulium body for her. He did however, use Soulium to aid in the healing process. Otto removed all her memories and she woke up as an "orphan". She chose the name Bianka Ataegina.

During the Second Honkai War, Sirin used the Fenghuang Down to trap Siegfried and Cecilia in an illusion intended to torment them. Instead, the illusion manifested as a peaceful family life where Sirin found herself embraced as a daughter by Cecilia. Cecilia's genuine affection and maternal care in this dream deeply affected Sirin, who had longed for such love. Even after realizing the illusion, Cecilia continued to treat Sirin with compassion, culminating in her final moments where she held Sirin and whispered "Ich liebe dich" ("I love you") as they faced death together.
This profound connection influenced Sirin's consciousness within the clone K-423, created by Otto Apocalypse. Sirin's yearning to experience Cecilia's love again played a role in K-423's development, intertwining their identities.
While not related by blood, the bond between Cecilia, Siegfried, and Sirin transcends genetics. Cecilia's unwavering compassion and Sirin's deep-seated desire for familial love establish a relationship that mirrors that of a mother and daughter. Sirin can indeed be considered a daughter figure to Siegfried and Cecilia.
Quotes[]
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Fanon[]
SiegCeci is a modest yet cherished ship in the fandom. Despite its canonical foundation, the ship maintains a relatively low profile in fan-created content compared to more prominent pairings. Nonetheless, it holds a special place among fans who appreciate its heartfelt narrative. The ship's appeal lies in its portrayal of a deep, genuine bond forged amidst adversity. Fans are drawn to the couple's mutual respect, unwavering support, and the sacrifices they make for each other. Their relationship is often celebrated for its emotional depth and the tragic beauty of their story.
In fanworks, SiegCeci is typically depicted with a focus on their family life, particularly their roles as parents to Kiana Kaslana. Fanfiction and fan art explore scenarios ranging from domestic bliss to alternative universes where the couple overcomes their tragic fate.
Fandom[]
- FAN FICTION
- Siegfried Kaslana/Cecilia Schariac tag on AO3
Trivia[]
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