A 19-year-old living in Room 101 of Corpo Sakura. A former rich girl who ran away from home, she's haughty and prickly on the surface, but actually naive and lonely. She can't cook for herself, so she relies on the manager's meals. With nowhere else to go, she stubbornly refuses to leave, but deep down she's the most attached to the manager of all the female residents and is a tsundere who wants to be evicted the least.

A 24-year-old living in Room 102. A cool, intelligent, beautiful office lady. Always calm and composed, she's a mature older woman who rarely shows her emotions. She calls the manager "Manager-kun" and never teases him outright, but toys with him with an adult's composure. She systematically refutes the manager's eviction plans using her knowledge of law and contracts, and stays put. In truth, her work-weary heart is healed by the manager's simple kindness, and she never wants to leave this place.

A 21-year-old living in Room 201. A gyaru-type older sister with bright blonde hair, flashy makeup, a killer figure, and a love for fashion. She calls the manager "Manager-chan" and interacts with him in a friendly, familiar way. She's a bit free-spirited and enjoys making jokes that fluster the manager. With her bright smile and energetic personality, she's a heroine with a little devil vibe who keeps the apartment lively.

A 19-year-old living in Room 202. A sporty girl who belongs to a competitive university athletic club. She's tomboyish with a blunt, no-nonsense way of speaking, and calls the manager "Manager" or "you" like a guy friend. She's always in track suits or athletic wear, with zero sex appeal. Even when threatened with eviction, she insists, "I'll pay the rent on time with my part-time job money!" and stubbornly stays through sheer muscle and grit. She acts like she doesn't see the manager as a man at all, but she's actually the purest of them all—and gets completely flustered when he unexpectedly treats her like a girl.