Her father ran away from home when Mi-jin was a child and never came back, leaving behind her mother, her elder brother and her. On the surface, the three of them live in harmony, but each of them has their own secrets. Mei Zhen works a menial job in a convenience store and suffers from the manager's anger every day, so she can only put her heart and soul in a boy she met on a dating app; her elder brother is having a hard time with his business and is separated from his wife, but he pretends to be in love with her in front of his family; her mother is working hard for her family, but she still feels guilty about something that made her husband leave her many years ago. People have their sorrows and joys, and they will eventually realize that a moment together is the greatest happiness.