Les Garçons-Bonbons 2: l'Oiseau du paradis (2017)

Kitazawa Haku had watched a movie and dreamed he was in a parallel universe. Meanwhile, Ryū, the older brother of Haku's friend Takeru, is facing down boys' bar owner Rokujō. Then Ryū becomes fascinated with Kikiyō standing behind Rokujō. On the day of the yearly festival, Haku suddenly disappears. Takeru disappears while in search of Haku. Ryū disappears while following Kikiyō. And then Rokujō also disappears.