Dangxiao Ba Ai Shangxue Ba

Dojo heir Xiaoman gives up her martial arts lifestyle and transfers schools to become the delicate, soft-spoken girl of her crush's dreams. But her plans hit a major wall on day one. Her lethal fighting skills and fierce sense of justice have everyone mistaking her for a tough, handsome boy, crowning her the top dog over all the school delinquents. Worst of all, her crush, Ran, officially bro-zones her. Xiaoman must now use this ridiculous mix-up to her advantage to transform her image and win Ran's heart.

(Source: Tappytoon)