Sakyu
Species: Succubus spirit
Sakyu is a succubus spirit who possesses Yuina's body, basically functioning as her magical alter ego. The whole point of Sakyu's existence is to push Yuina toward being more assertive and self-assured—kind of like having an aggressive confidence boost living in your head. When Sakyu takes over, she helps Yuina tap into a side of herself that's way more determined and willing to take action than Yuina typically is on her own.
Content compiled by AnimeList.moe from publicly available sources.
