Ep. 10: Seiji stays home with Guri, Akane, Yuzu, and Shikimi, but Akua returns early.
Aired on June 9, 2017

While Seiji’s family is away for a few days, he remains home with Guri. Akane arrives to spend the night and demands a kiss Seiji previously promised. The situation becomes more complex when Yuzu and Shikimi also appear. Although things seem manageable initially, Seiji’s younger sister Akua returns home early. She discovers Seiji surrounded by the four girls in a compromising situation and scolds him for his behavior. Following this incident, Guri becomes curious about the siblings' relationship. She drags Akua out shopping to investigate the root of her brother-complex and understand their dynamic better.
Episodes
- Ep. 6 · Summer Beach Trip and Courage Tests with Seiji, Guri, Akane, Yuzu, and Akua
- Ep. 7 · Guri Wanders Alone After Arguing with Seiji and Accepts a Date with a Stranger
- Ep. 8 · Yuzu and Guri face obstacles to save Akane, who attacks her sister until Seiji arrives.
- Ep. 9 · Cultural Festival Chaos with Shikimi's Transfer and Strange Behavior
- Ep. 10 · Seiji stays home with Guri, Akane, Yuzu, and Shikimi, but Akua returns early.
- Ep. 11 · Investigating Her Disappearance and Apologizing for Past Troubles
- Ep. 12 · Right, Let's All Die! x I Finally Understand