Living Together is Dangerous.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...