2人の恋は、チェスのように

Olivier gets rejected by Matsuri. Sota started asking Rikudou about Sekiya to set him with Kaoruko after she rejected him, but Rikudou misunderstands and thinks Sota is gay. Saeko feeling lonely by her husbands attitude, invites Sota to her house after the date, but Sota rejects her. Eventually, Kaoruko agrees to go on a date with Sekiya, when she finds out that it is just a homework from Rikudou.