An internet-addicted teenager dies suddenly and travels back in time to become a 62-year-old terminally ill landlord of multiple apartments, accidentally unlocking a surprising survival system. As long as the three beautiful tenants are shocked, they can live longer, fight cancer, and slowly regain their youth. The old appearance hides a twenty-year-old soul, and he creates contrasting scenes in his daily life, helping the tenants escape from the quagmire of their own lives, making friends with reliable brothers, playing games, and slapping various troublesome people in the face along the way, starting a satisfying two-way healing urban story.
