Knuckle Curve

Takumi, a high school boy living with his overly affectionate, beautiful stepmom and in love with his childhood friend, is at that age where romance blooms. One day, his stepmom mysteriously splits into four!? Each mom—yandere, tsundere, childish, and more—has her own unique personality and supports (or interferes with) Takumi’s love life in her own way.

When high school student Inubou Takeru is transferred to a new school, he is shocked to discover that not only is it an all-girls school, but all the students are succubi! Can an average guy like Takeru handle the carnal appetites of his devilish classmates while maintaining his purity?