It was originally just a wild ghost-catching game between Yao Qing and his second uncle, but he accidentally provoked a demon. The demon was tough at first and forced Yao Qing to his palace, and also allowed other little demons to call Yao Qing "little madam". After Yao Qing finally escaped from the devil, she thought she could start her ordinary college life. The devil came to school again and became his classmate. He changed his previous gloomy appearance and became gentle and considerate. Finally, the devil gave Yao Qing a contract and said, "Because our fates are bound together, you can't leave me for even a step in the future." He forced Yao Qing to sign the contract. "But why was it you, my Lord Demon, who broke the contract first? Didn't we agree that we would never be separated for the rest of our lives?" Yao Qing said.
Concept: Both demons and gods exist based on human thoughts.