Xu ChengYan

Xu ChengYan is a young man who is living a double life. By day, he is a normal college student, but by night, he is a stand-in for a popular idol. When the idol suddenly dies, Xu ChengYan is forced to take on his identity and pretend to be him. At first, Xu ChengYan is overwhelmed by the responsibility of being an idol, but he soon learns to embrace his new role. He makes friends with the other idols in the group, and he even starts to fall in love with one of them. However, Xu ChengYan's happiness is short-lived. The real idol's family is suspicious of him, and they are determined to find out who he really is. Xu ChengYan must find a way to keep his secret safe, or he will lose everything he has worked for. The Substitute Relationship is a romantic comedy about a young man who is forced to live a double life. It is a story about love, friendship, and the power of self-discovery.