Takeo has been acting strange lately. He doesn't even try to participate in the activities of the Hadogumi, although he does tell his mother that he's going to their hideout, and his strange behavior stands out. Since her husband Shoichiro is away in the mountains, his wife Hanako decides to consult Dr. Ochiai about her son. Ochiai immediately talks to Takeo. Takeo felt a sense of emptiness in the activities of the Hadogumi.