Ruu Oka

Ruu Oka is a second-year student at an all-girls middle school and serves as the president of the Supernatural Science Club. Her towering witch hat and unsettling aura tend to make a spine-chilling first impression, yet those who know her discover a genuinely kind and caring soul beneath the mysterious facade. Her obsession with the occult borders on the extraordinary—when a club member was hospitalized, her immediate conclusion was that a spatial teleportation event had occurred. Despite her limited grasp of everyday common sense, she shares a close bond with the Game Research Club, regularly introducing them to peculiar, mysticism-infused games that only she could dream up.