Kouzuka Kottouya no Akujiki

Sagara Naoto sells items at an antique dealer market, but their value is questionable. He encounters Kazuyuki Minato, a former classmate and antique shop owner, who invites him to his shop. Minato demands something unusual—Naoto's body. Naoto is brought to the shop, not to work but to pay his debt in an unexpected way. Meanwhile, Natsume Yamato manages his family's bathhouse with his grandmother while dealing with Rio Oyamada, an art student who constantly harasses him. Oyamada refers to Yamato as his "Venus," claiming him as his muse. Though Yamato finds Oyamada's behavior intrusive, he feels strangely unsettled when Oyamada isn't around.