First Love Monster - S01

Freshman Kaho Nikaidou comes from an influential family, so no one has ever said anything even slightly mean to her, afraid of angering her household. Wanting to be around people who won't treat her as special because of her background, she leaves home to live in a dormitory for her new school year. Soon after arriving, Kaho accidentally wanders into traffic and is saved by a tall, handsome stranger. When she asks his name, he tells her she is weird and walks away. Having finally met the only person who has ever said an unkind word to her, Kaho falls head over heels for her savior. After meeting her rescuer again and learning his name is Kanade Takahashi, she confesses her love to him. Kanade says he would like them to be a couple, but that Kaho may not want to date him once she finds out his secret. To her shock, Kaho discovers the startling truth: Kanade is a fifth grader! Deciding she can't date a fifth grader, Kaho plans to break up with him. But as she spends more time with Kanade, she begins to care for him even more and keeps dating him. Hatsukoi Monster follows Kaho's first steps into love with Kanade, her immature yet kind fifth grade boyfriend.