Sarina Tendouji

Sarina Tendouji was a pivotal character in Oshi no Ko. She was a child patient under Gorou Amamiya's care and a fan of Ai Hoshino, which rubbed off on the former. Following her death from anaplastic astrocytoma, she ends up being reincarnated as Ai's child, Ruby. Sarina had wide bright blue eyes and auburn shoulder-length hair. However, towards the end of her life, she gradually lost her hair and presumably became bald as her condition worsened due to her sickness: anaplastic astrocytoma, having to undergo chemotherapy. In the majority of her appearances, Sarina wore a gray wool hat with a pi...

Sarina appeared incredibly energetic, bubbly, and cheerful on the surface, completely defying the grim reality of her terminal illness. This radiant outward persona was especially prominent when she was talking about her absolute favourite idol, Ai Hoshino, or playfully teasing her doctor and careta...