Nigerasenai Yo? Fukakuro-Kun summary:

The story revolves around Fukuro, a high school boy who tries to live in the shadows.However, his life takes an unexpected turn when, as part of a punishment game, he has to confess his love to the most popular girl in his class. Through a misunderstanding, he ends up confessing his feelings to Tsubaki Sakura, the most feared girl in school.As he tries to clear up the confusion, Tsubaki surprisingly attacks him, adding an unexpected and hilarious twist to the situation.+