Character
Yui Kanakura
かなくら ユイ
Description
Height: 167 cm She is a childhood friend of Raku as well as his current homeroom teacher. Yui is also the head of the Chinese mafia group, Char Siu. Yui is also in possession of a fourth key but has confirmed to Raku that she is not the girl he had made a promise with ten years prior.
Voice actors
Japanese voice
