Itazura na Kiss

Synopsis

While walking to school together, Irie tells Kotoko that he doesn't care for her, and when Kotoko is pushed off the train at the wrong station Irie does not help her, saying he hates absent-minded girls even more than stupid ones. Using an embarrassing childhood picture, Kotoko blackmails Irie into tutoring her on the next exam, saying she'll hand over the picture if she makes it into the top 50 scores among the students. As they study, the two of them get to know each other better, and Irie's mother hands Kotoko a good luck charm for the test. Kotoko misses the train again, but this time Irie helps her. After the test, Kotoko makes it to the 50th spot, while Irie ranks number one. Kotoko opens the charm to reveal a picture of the two of them sleeping peacefully while studying. Her friends find out and end up teasing Irie, who angrily turns on Kotoko.

(Source: Wikipedia)