It's Valentines Day soon, Irie's mother helps Kotoko make homemade chocolate, but Kotoko fails to give them to Irie. Later on, Naoki goes to take the entrance exam to Tokyo University. Kotoko sets off to accompany him to the venue; however, the plot twists when Kotoko's health takes a turn for the worse. Irie abandons the exam in order to bring Kotoko to the hospital. After this incident, Kotoko tries to leave the Irie household blaming herself for ruining Irie's chance of getting into Tokyo University. As she tries to leave, Irie talks to her saying he could have made it in time to do the exam but he didn't, as he wants to go to the same college as Kotoko since she is "interesting to have around". After deciding to stay, Kotoko makes more chocolate for Irie, but he rejects saying he doesn't like sweet things.