High schoolers Momo and Okarun, who debate about ghosts and aliens, investigate paranormal sites, encountering supernatural forces while awaking hidden powers to face the unknown. Theatrical event featuring the first three episodes of DAN DA DAN, and an exclusive interview with Yukinobu Tatsu and Shihei Lin, the author and editor of the original manga, Fuga Yamashiro (Director), and Shion Wakayama (voice of Momo) and Natsuki Hanae (voice of Okarun).

Momo and Okarun set out on their latest adventure, traveling to a hot springs town home rented by Jiji, Momo's childhood friend and former crush, with the goal to solve the mystery surrounding his family. When they arrive, strange locals derail their investigation before it can properly begin, and the group soon learns there's more lurking under the surface of the town than they could possibly have imagined. Theatrical event featuring four episodes of the anime, including the first three episodes of the second season, and an exclusive interview with series co-directors Fuga Yamashiro and Abel Gongora.