Hearts Passing Each Other By Episode 12

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.