Amamiya Sophia Seren

Amamiya Sophia Seren (天宮・ソフィア・聖恋) is a Lily who attends Ludvico Private Girls' Academy. She is a member of Legion Ironside. She is the Schwester of Kuroki Francisca Yuria and the childhood friend of Kishimoto Lucia Raimu and her older sister Kishimoto Maria Mirai.

History
During her childhood, Seren became friends with Kishimoto Lucia Raimu and her older sister Kishimoto Maria Mirai. She promised the latter to protect Raimu.

Schwester's Prayer
Yuria and Raimu enroll as first years in Ludvico Private Girls' Academy, and the two are greeted by Saeki Julia Karen, Hasegawa Gabriella Tsugumi, and Haneda Catalina Mei. After Narumi Clara Yuko says insensitive things to Raimu, she gets angry at her.

Schwester's Secret
At the end of Schwester's Secret, Yuria and Seren become Schwesters.

Anime/game
Seren makes her appearance in Chapter 2 of the main story.