Takumi, a high school boy living with his beautiful and overly affectionate stepmom, is just a typical teenager in love with his childhood friend. But one day, his stepmom suddenly splits into four versions of herself!? From the yandere type to the tsundere and even a childlike version, each unique “Mom” begins to interfere (or "support") his love life in their own chaotic ways… A heartwarming (maybe?) and hilarious rom-com featuring Four Moms who just won’t act like moms! Let the “Not-So-Motherly” love comedy begin!