Black School Rules (2019)

Sora is a high school student, but feels virtually invisible at school. His friend, Chuya, does unpredictable and surprising things and has a completely different personality than Sora, but they both like the same girl, Kio.

In their pursuit of her, they take a stand against their school's unreasonable rules, which require all students to have black hair and the object of their affection has brown hair and refuses to change it, so she won't attend school. Based on the anime series of the same name.