The After School Science Club merged with a proposed shogi club to become “the Shogi Science Club.” Club activities include Rei teaching the members how to play shogi and Rei being taught various science experiments. Rei realizes that he’s delighted to have a warm place where he belongs at school. With ramune in hand, he heads for the Kawamoto home.

Hinata has been coming up with new ideas for sweets one after another all throughout summer vacation, but struggles to focus on her studies and deciding which high schools to apply to. Rei decides to invite the three Kawamoto sisters to some nagashi somen fun at his school. When Hinata meets the members of Noguchi's Shogi Science Club and Hayashida, she begins considering Komahashi High, Rei's high school.