Tomo is growing increasingly concerned about Misao and asks Shuri and Touru to locate his brother, Naotaka. In exchange Tomo must persuade the reclusive Science Club president Tokiya Kagayaki to return to school. However, this is not as easy as it first sounds so Tomo takes Misao and Takatsuki along to help. Tomo also learns that Touru and Tokiya have a very tragic connection to Kurogane.