The girls play strip Mahjong (whoever gets the lowest score each round must remove an article of clothing) in the middle of the night except for Kyouka who refuses to play. Kaoru, who is quickly stripped to just her panties, wakes Sota up so he can play. They wager that whichever girl wins can do whatever they want with Sota that night, while if Sota wins, they must do his chores for a month. Ayano eventually gets bored and leaves the game. Kaoru wins in the end. She asks to share his bed. He tries to sleep, but she kisses him on the lips and dry humps him. She abruptly stops and leaves the room, leaving him shocked.