In the summer when he was eighteen years old, Gu Ruanruan, who was spending his summer vacation in Muyun Ancient Town, rescued Fu Xizhou whose car fell into the river while swimming in the river. Fu Xizhou, who was in a coma due to high fever, woke up three days later but lost his memory. The kind-hearted Ruan Ruan left him to take care of her. During the month they got together, she fell in love with him. Before she could confess her love, he left without saying goodbye.
