Irie tells his father he does not wish to take over his company, instead he wants to become a doctor. Irie's dad has a heart attack after he hears this. When the company employees come to see Irie senior in hospital, one of them requests a marriage interview with Irie. Irie meets Chris and decides to marry her. Kotoko decides to give up on Irie after she overhears him telling oba-chan that he likes Chris. Kotoko goes on a date with Kin and he officially proposes to her.

Irie-kun starts to ignore Kotoko due to being overly jealous of Keita, when Kotoko gets very fed-up of his behaviour she gets very upset and starts throwing books at him and saying that Keita was right Irie doesn't care about her and that Keita thinks about her more then Irie does and that Keita was serious, Irie slaps Kotoko, Kotoko yells that she's had enough and runs away, she ends up at Tomoko's house. Kotoko's dad talks to Irie about how things had been between him and Kotoko's late mother. The next day in the lunch room Keita talks to Kotoko asking her to live with him now that she's run away from home, when Kotoko declines Keita confesses that he is in love with Kotoko, and she should not go back to someone who does not love her, Kotoko tries to defend Irie but Keita questions if Irie came after her, and just as Kotoko is feeling like Keita is right, Irie runs in claiming Keita is wrong and that he was only being the way he was because he was feeling jealous of Keita, explaining that he (Irie) has never felt jealous or sad before so he didn't know what to do, he confesses that he can work through it all with Kotoko by his side, Kotoko still teary, questions Irie if its ok for her to be by his side, Irie smiles at her saying that's what he wants, Kotoko runs to him, the whole school breaks into cheers and congratlates them. Later, Irie is seen kissing Kotoko in their bedroom.