Ponkotsu Fuuki Iin to Skirt-take ga Futekisetsu na JK no Hanashi

ポンコツ風紀委員とスカート丈が不適切なJKの話

Every morning, Sakuradaimon-kun enforces the rules at the school gate, stopping Poem-chan for her too-short skirt. But when they’re thrown together in remedial class, she discovers his secret—the serious, uptight Sakuradaimon-kun is hopeless at studying! As they clash, bicker, and stumble through school life together, the two opposites slowly draw closer and form an unexpected friendship.

(Source: Crunchyroll)