Hi, I’m trying to find the title of a Boys' Love (BL) fantasy novel or series. The plot revolves around a boy who joins an academy and possesses a unique and feared power involving black butterflies. These butterflies symbolize death, which causes others at the academy to fear him. The story likely combines elements of romance, magic, and supernatural abilities. Does anyone know the title of this series or where I can find it? Any help would be appreciated!