Arisa, dressed in a wedding gown, smiles sweetly in front of her husband—Arisa's new husband, the protagonist's father. The son deeply hates both his father, who cast out his real mother, and his new stepmother, Arisa. One day, he catches the two secretly meeting at home, igniting a surge of rage and desire for revenge. Waiting until the night of their wedding—the night they vow their love and eagerly anticipate their first time together—the son decides to make this day, meant to mark a new beginning for Arisa, into a night of forced initiation on his own terms.