Shintaro, Tsumugi, and their supernatural friends decide to go to the occult research club's summer camp. As it's being hosted at Hisui's family's vacation home, they're treated to lavish service while they enjoy the beach and hot spring.
And why's there a sumo ring in the room?!
‫ولمَ توجد حلبة سومو في الغرفة؟!
¿Por qué hay una sala de sumo?
¿Por qué hay una sala de sumo?
E perché c'è un ring per il sumo nella stanza?!
E por que tem um ringue
de sumô interno?!
Откуда здесь ринг?