Kagalyanette

Kagalyanette is the polyship ship between Kagami Tsurugi, Marinette Dupain-Cheng and Alya Césaire from the Miraculous Ladybug fandom.

Canon
While Alya and Kagami don't know really each other well, while Marinette is friends with both girls and had entrusted them with Miraculouses on separate occasions; involving a family of Alya and Kagami's families being the akumatized villain who Ladybug needed their help to defeat. Marinette is the first friend who Alya meets on her first day in Marinette's class, and the two have been friends ever since. Along with Alya being a large Ladybug supporter and stared a blog, with while having no idea that she is her friend. Because Marinette commonly tells Alya about the girls who catches Adrien's attention, like Kagami who sees Marinette as a love rival for his heart, Alya hears a few things about Kagami from Marinette. After Marinette got paired up with Kagami in the Friendship games during "Ikari Gozen", it gets an upset Marinette to call Alya about her partner and how she plans to keep Kagami away from Adrien. Because Marinette had switch phones with Kagami when Alya called Marinette back, Kagami sees Ayla's reply and gets hurt by it until Marinette amended things between them, in which allowed Marinette and Kagami to become true friends.

Before season three has Marinette and Alya become friends with Kagami and during the season two finale, "Heroes' Day", Kagami is one of the first few people to be re-akumatized for Scarlet Moth's army to which has Ladybug asking for Rena Rouge's help to turn Kagami and the others back to normal. Even though the two were able to turn Crimson Riposte back into Kagami, Crimson Dark Cupid hits both Kagami and Rena Rouge with his arrows in which leads allows Scarlet Moth to re-akumatize Kagami back into Riposte, while Rena Rouge become Red Rouge. Luckily for the two, Ladybug was able to free them from Scarlet Moth's hold by destroying his cane. While Kagami was wondering what has happened to her and recovering from what she was about to do, Rena Rouge dashes off to Ladybug's aid so they could make sure that Hawk Moth could akumatize Kagami or anyone else again, but he got away before they could.

The way that Alya and Kagami acted with one another in "Desperada" hits that Marinette may have told Alya about her new friendship with Kagami and how she is someone who Alya would also like to befriend. When Kagami decided to skip her fencing lesson that day, she and Adrien met up with Alya and Marinette at the Couffaine's houseboat. Once both Alya and Kagami saw Marinette with Luka they could see that the two make a cute couple. Alya and Kagami were later captured by Desperada when she attacked them, and Ladybug had to call in a new hero, Viperion, to help her and Cat Noir save Kagami, Alya and the others, by defeating the titled villain. The girls then spent the rest of the day watching their musical friends play music together, before Kagami tells Marinette how love is something that people can't get a second chance at, which is why Marinette needs to quickly make up her mind about picking either Adrien or Luka. Hearing Kagami tell Marinette this, Alya reminds both girls that either of the two said boys haven't made their own choices yet.

After the first part of the season three finale has Marinette spending a large part of the day with Kagami, the second part has both Kagami and Alya being stung by Miracle Queen's wasps, while Marinette was able to escape the wasps by transforming into Aqua Ladybug. Because both Alya and Kagami are two of Ladybug's champions through the Fox and Dragon Miraculouses, Miracle Queen has them and the others to reveal themselves before her and Hawk Moth who now knows that Alya is Rena Rouge, once she placed on the Fox Miraculous and transforms, but had known that Kagami was Ryuko since the events of "Ikari Gozen". The only reason that a mind controlled Kagami didn't help a mind controlled Rena Rouge fight Ladybug was due to the spotted heroin not being able to return the Dragon Miraculous back to its back before it was taken, and ends up using it to become Dragon Bug. Sometime after Ladybug defeats Miracle Queen defeats and frees Alya and Kagami from her control, the three girls spent the rest of the day with their other friends. Alya and her boyfriend Nino sit next to Kagami and Adrien, while Marinette and her companion Luka sit on the opposite side to them.

Fanon
Kagalyanette is a rare poly Miraculous Ladybug ship, as Alya and Kagami don't know each other well, while Marinette knows both of them and has had bonding time with each individually.

Because both Alya and Kagami are temporarily intrusted with Miraculouses, the Fox Miraculous and the Dragon Miraculous, many fans hope that future episodes in the series would have Rena Rouge and Ryuko helping Ladybug, together as a team of three. Along with Marinette introducing Kagami to Alya so the lonely Japanese girl can have another friend in her life. After the season three episode, "Timetagger", revealed that Maybug's future adulthood self had assembled a team of fellow Miraculous holders, many fans began to theorize that this team may include both Rena Rouge and Ryuko. The fact that they'll be facing a different holder of the Butterfly Miraculous in the future, which was also revealed in the episode, there is a chance that they may not know their civilian identities. Since the season three finale has the current Hawk Moth uncovering Rena Rouge's and the other temporally heroes' secret identities, it hasn't stopped fans from hoping that it wouldn't stop Ladybug from trusting the two girls with their temporally Miraculouses again.

Fandom
FAN FICTION
 * Marinette/Alya/Kagami tag on FanFiction.Net

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Variations

 * Alyami refers to the ship between Alya and Kagami
 * Alyanette refers to the ship between Alya and Marinette
 * Kagaminette refers to the ship between Kagami and Marinette