Swallowtail: Ano Hi, Ao wo Koete

Shou's capricious girlfriend Yuuna vanishes during a festival after convincing him to help steal a mask from a vendor—a reckless escapade that ends when she disappears into the crowd, leaving him with only memories and unanswered questions. Three years later, Shou has moved to Tokyo for university and built a new life with his childhood friend Rie, seemingly moving past the trauma of that day. When a mysterious message arrives one month before the next festival bearing Yuuna's exact words from years ago, Shou finds himself drawn back into an unresolved mystery that suggests their interrupted connection may not be as finished as he believed.