First Love Monster

Kaho Nikaidou, a freshman from a prominent family, leaves home to live in a dormitory during her new school year. There, she meets various people without the burden of her family's influence, but also encounters a stranger who calls her out for being weird after saving her from a traffic accident. Despite this initial harsh treatment, Kaho develops strong feelings for Kanade Takahashi, the tall, handsome stranger who becomes her rescuer. However, their budding relationship hits a snag when Kaho discovers Kanade's secret: he's a fifth-grader.