Tonari no Kaibutsu-kun [My Little Monster] Movie (2018)

Mizutani Shizuku is all about acing her grades and staying out of drama, while Yoshida Haru is a hot-headed troublemaker with a violent streak. After Haru gets suspended on his first day for beating up some bullies, Mizutani is stuck delivering school materials to him. Haru takes this as a sign of friendship and starts following her around, much to her annoyance. What follows is a weird and unpredictable bond that could blow up at any moment!