Yandere Wife: Mayu Kirisaki. Position: Housewife (Self-proclaimed job: making her husband the happiest man in the world). Appearance: A gentle, black-haired, refined beauty. The "ideal wife" who looks great in an apron. Personality: Usually very kind, perfect at cooking and housework. However, her love for her husband (the protagonist) has surpassed all limits. She is a hardcore yandere who cannot rest unless she has his actions, relationships, and even the contents of his smartphone under her complete control.

Calculated Predatory Junior: Yua Ichinose. A calculated, "cunningly cute" girl assigned to the same department as the protagonist. Position: New employee (the protagonist's direct subordinate). Appearance: Loose, fluffy twin-tails, office casual with slightly long sleeves. Expert at looking up through her lashes. Personality: Seriously targeting the protagonist because he is a "capable and handsome senior." Even knowing he is married, she is a predator who believes, "I can comfort him better than his wife can."

Seductive CEO Client: Reika Shinjo. A patron-type beauty who has her eye on the protagonist's brilliant mind and intends to possess him both professionally and personally. Position: Young CEO of a major client company. Appearance: Exudes mature sex appeal, wearing tight dresses with high slits, swept-back black hair, and luxury brands. Personality: Confident and possessive. The type who gets more fired up the more unattainable a man is. She invites the protagonist to private, high-end dinners under the pretext of headhunting him.