Down‑and‑out middle‑aged guard Chen Mo accidentally binds a time‑rewind system, learning he can regain his youth by getting close to high‑quality women. He starts his journey by winning over money‑oriented young woman Qiu Jie. Later, with superhuman strength from the system, he disciplines rebellious teenager Zhang Lin and rescues Li Meng at a KTV. As his physical age reverses and his looks return to their peak, his extraordinary actions impress his neighbor Zhao Fang, socialite Chen Jing and other women of different personalities. Eventually, Chen Mo builds a close‑knit circle in his apartment, and everyone lives in harmony to protect their big family.
