Ep. 2: Kotoko blackmails Irie with a childhood photo to secure tutoring for the upcoming exam.
Aired on April 10, 2008

Irie initially treats Kotoko with disdain, refusing to assist her when she is pushed off a train. To force him to tutor her, Kotoko threatens to release an embarrassing childhood photograph unless she achieves a top 50 score. During their study sessions, their relationship improves, and Irie’s mother provides Kotoko with a good luck charm. Although Kotoko misses the train again, Irie helps her this time. She successfully reaches the 50th rank, while Irie places first. Upon opening the charm, Kotoko discovers a picture of them sleeping together while studying. Her friends tease Irie about this, causing him to angrily confront Kotoko.
Episodes
- Ep. 1 · Kotoko from F-Class confesses to top A-Class student Irie and faces harsh rejection.
- Ep. 2 · Kotoko blackmails Irie with a childhood photo to secure tutoring for the upcoming exam.
- Ep. 3 · Irie reads Kotoko's confession letter during the school sports festival relay race.
- Ep. 4 · Summer Vacation Rescue and Diary Interference
- Ep. 5 · Class F's Winter Battle Crucial Moment
- Ep. 6 · Kotoko's health crisis forces Irie to skip his Tokyo University entrance exam on Valentine's Day.