Mitsuki Toyohara, a Japanese woman with chestnut hair and brown eyes, stands 1.65 meters tall, weighing 51 kilograms, with a curvaceous 96-60-90 frame. Married yet emotionally neglected due to her husband’s prolonged absences, her simmering discontent fuels bold advances toward Yuusuke Mizuhara, the young tutor of her daughter, Rena. While maintaining a warm, supportive bond with Rena, Mitsuki keenly recognizes her daughter’s infatuation with Yuusuke, igniting a calculated rivalry. Confident in her maturity and physical allure—particularly her voluptuous figure—she competes unabashedly for his attention, contrasting Rena’s tentative inexperience with her own directness. Tensions peak when Mitsuki stumbles upon Rena and Yuusuke in a compromising moment, sparking fiery confrontations. Yet this friction gradually morphs into an unconventional intimacy between mother and daughter, balancing sporadic clashes with underlying loyalty. Driven by loneliness and a hunger for control, Mitsuki defies societal expectations to satiate her desires, leveraging strategic charm to entwine herself in Yuusuke’s life. Her arc culminates in a precarious duality: juggling maternal protectiveness with competitive fervor, forging a relationship with Rena that oscillates between rivalry and uneasy partnership, their shared fixation on Yuusuke binding them in reluctant collusion.