Koma gets an idea from Oga's Super Milk Time training to switch bodies with Aoi Kunieda by offering her Manju. He has some fun moments with Aoi that gets pervy but he also spends a good bit of time with the kids, of which Koma fits in pretty well. His attempts to push them into his own designs are definitely fun since he wants to utilize the body switching ability for his own ends, which is essentially to get into Aoi’s body and play with her end. Hilda wins a ticket to an Onsen where Oga's family and her enjoy a relaxing bath. Oga, Beel, and Hilda bond a little bit while Furuichi thinks he has a chance to see a woman naked in the mixed hot spring bath.
Koma est fasciné par la super heure du lait d'Oga et Beel. Il se dit qu'en faisant manger à Kunieda les manjû qu'on lui offre au temple, il pourrait lui aussi prendre possession de son corps. Il va donc tenter tous les stratagèmes pour lui faire manger les fameux manjû... De son côté, Hilda gagne à une loterie un voyage en source thermale. C'est toute la famille Oga qui part donc en voyage...
En la primera parte, Koma quiere que Aoi coma su Manju para intercambiar sus cuerpos como lo hacen Oga y bebé Beel. Así, Koma le pide ayuda a bebé Beel y Kota para que Aoi coma Manju. Hilda, en la segunda parte, gana un viaje para 5 personas a un baño termal. De esta forma, la familia de Oga pasan unas merecidas vacacione relajándose mientras Hilda le cuenta un poco de su pasado a Oga.
Basterebbe un Manju per impossessarsi di Kunieda, tagliato sottile sottile. Poi... tutti alle terme miste.
