Taisuke has asked Makoto to meet his 'girlfriend' and Makoto invites him over to the roof for lunch. To his and Sekai's surprise it's Kotonoha and they've started going after the festival. Later after class Sekai goes to hang out with her friend and Makoto goes to the train station and winds up taking a train with Kotonoha. Kotonoha explains that Taisuke grabbed her and told her go out with him and because she felt she had no choice she accepted. Sekai, Hikari, Setsuna and Nanami are at pure burger and Nanami complains about her boyfriend preferring porn games to her and then Sekai reveals Taisuke got a girlfriend. Hikari sees it and gets jealous. The next day at lunch Makoto decides to find Taisuke as soon as the bell rings and finds Taisuke more or less raping Kotonoha. Makoto continues to watch them and Hikari comes and they both continue watching. Makoto gets aroused and starts fondling with Hikari. Before they go too far Kotonoha and Taisuke are done and they have to stop. Makoto compliments Hikari and that she's a great girl. When he gets back Sekai gives him a lunch she made with Setsuna's mom. Makoto likes it and she invites him over for the weekend because her mother is going to Paris on a business trip. She then goes to Pure Burger with Nanami and Setsuna but Hikari declines. Setsuna then calls Nanami's boyfriend and makes plans for everyone to go to his house and play his pornographic games.
Makoto runs into Kotonoha at the train station and Kotonoha says she loves and asks Makoto to break up with Sekai and go out with her. Before Makoto answers she guesses no and says she only asked for the sake of it. She then leaves on the train when Hikari comes out having been evesdropping. Hikari says she wanted to see what Taisuke's girlfriend is like and then accepts she can't compete with her. Makoto then thinks Taisuke likes Kotonoha only because he's addicted to sex and comes up with a plan to help Hikari. At home he calls Taisuke and tells him he wants to have sex with Kotonoha and in exchange he'll let him do Hikari. He sugarcoats Hikari and says she's in love with him to get Taisuke to agree. Hikari calls Makoto and asks him what he's doing but he says if it works out he'll tell him tomorrow and continues talking with Taisuke. Taisuke has asked Kotonoha and agrees and make plans to meet at Kotonoha's house and decides to go for 7 or 8 hours.