Love Live! School Idol Project OVA

Maki Nishikino shares a strange dream with Hanayo and then unexpectedly disappears from school the next day. Worried, the members of μ's go looking for her, only for Eli to notice a mysterious figure leading her through a school that suddenly seems trapped in night. There she encounters a much younger Maki, turning the search into an uncanny glimpse of feelings and memories hidden beneath their ordinary days together.