Nayu explains her situation to Keigo. Hiroki then comes over to Nayu's house to apologize and ask is there's anything he can do for her, inadvertently offering to help her make an 'Underwear Appreciation Society'. Nayu also manages to convince Yako, Haruka and Mizuno to become members too. They hold the meeting at Nayu's house, where Mizuno is surprised to see Keigo, who was her senpai in high school. Nayu contemplates about love and whether she is adult enough to run a society...