Wang Xiaole is an ordinary pipe repairman. During a blind date, he mistook the room number ten for four and entered Room Four, where he met Mo Ran. Mo Ran's views on blind dates made Xiaole very attracted. After a while, Xiaole accidentally met Mo Ran again, who was in a wedding dress. Mo Ran asked Xiaole for help, and as a result, they were hit by a car chasing them from behind and were both sent to the hospital. In order to get rid of her father's restrictions so that she could go find her wandering boyfriend, Mo Ran pretended not to know her father. Helpless, Mo Ran's father abandoned his daughter and left. Xiaole had no choice but to take Mo Ran home and actively look for ways to treat her injuries.