BronSeeleSin

BronSeeleSin is the poly ship between Bronya Zaychik, Seele Vollerei and Sin Mal from the Guns Girl Z fandom.

Sin Mal Origin Comic
Bronya and Sin had met in the past while Bronya was still the Silver Wolf of the Urals. She broke into Sin's house and held a gun to her head, intending to rob her of her food. Sin, however, is elated to meet someone new and asks Bronya to play with her. Just then, Bronya gets surrounded by soldiers, and Bronya defends Sin, saying she has nothing to do with this. As Bronya passes out from her injury, Sin kills all the soldiers. Sin gently holds Bronya, but Bronya is terrified of her after seeing what she's done.

Three years later, Sin is taken to Cocolia's orphanage, and her step-mother urges her to get along with Cocolia's adoptive children. Sin is excited to see Bronya, who is with Seele. When Sin approaches, Bronya protectively puts her arms around Seele, telling Sin to stay away from her. Sin asks to be friends, but Bronya replies that Sin is a monster, not human. Later, Sin's step-mother sells her off to a rich aristocrat. Sin is haunted by Bronya's words and so kills her step-mother and the aristocrat, believing "sin" will make her more human. She burns the mansion down and walks back to Cocolia's orphanage. With her hair burnt off and body covered in blood, Sin faces Bronya with a teary smile, asking if she looks human now.

Lost Child
Since then, Bronya and Seele have successfully undergone the X-10 experiment. Though Cocolia stopped any more experiments, Sin decided to undergo the X-10 experiment without her permission to become stronger than Bronya. Bronya and Seele end up in her consciousness space. They come across a castle, which Bronya recognizes as Sin's childhood home in its burned state. There, they find a young version of Sin. Bronya and Seele agree to play with her so they can find information on how to leave. Bronya wonders why the two of them specifically ended up in Sin's stigma space. Seele guesses that it is because Sin really likes Bronya and hates Seele, though Bronya argues that Sin probably wants to be friends with Seele deep down.

In the pretend game Sin has them play, she puts Seele in the role of a murderer. Seele moves to kill this version of Sin, saying it will bring the real Sin back, though she is unable to. Another young version of Sin appears, reflecting her more monstrous side. Sin expresses her true feelings of self-hatred and wanting to be human. The young Sin tells Bronya to kill the hateful version of Sin to exit the labyrinth. But Bronya refuses. Rather than regard Sin as a monster like before, she says that Sin is not herself without this side of her. Bronya gives her a warm hug, and Sin returns to her normal self. Seele appears to be a bit jealous, remarking that Bronya has never hugged her like that.

Sin conducts the X-10 experiment again, now with Bronya and Seele to accompany her. This time consciousness space takes place in the orphanage. Sin encounters the hateful young version of herself. Bronya gets caught between a conflict with Sin and her past self. Sin intends to grab at the young version of herself, though unknowingly grabs at Bronya. She repeatedly insists that she is human and despairingly asks why Bronya avoids her. Bronya apologizes, confessing that she pushed Sin away because she was afraid of her own sins. Sin accepts Bronya's apology and her past self disappears. The X-10 experiment was a success, so the three return to the real world. Cocolia puts Sin on Bronya's team.

Quotes
"Tsk, don't look at me like I'm Seele, with your nauseating eyes. People like you disgust me!"

- Sin upon being hugged by Bronya, Lost Child

Fanon
BronSeeleSin is exclusively shipped among fans of Guns Girl Z, because of Sin's unredeemable portrayal in Honkai Impact 3rd, where she breaks Bronya's legs and attempts to assault Seele. This never happens in the Reborn timeline of GGZ. Instead the three are able to reconcile, so the ship has more screentime and is much healthier than its HI3 iteration.

Fandom

 * FAN FICTION