Jian Shu was sent by his family to the remote Yucheng to serve a “god” who has been worshipped for thousands of years. It was a sham. The “god” was a bloodthirsty evil spirit, not gentle and kind. The large ancient mansion was dark and cold, and Jian Shu was the only living person there. He didn’t know that he was sleeping with an evil spirit that had been starving for a thousand years, but he brought offerings every day and worshipped him with fear. If he was afraid, he would stay in the ancestral hall and talk to the “god” in a low voice. The boy’s troubles and joys woke up the sleeping “god”. One day, he fell asleep curled up on a futon. When he woke up, a clear hickey appeared above his collarbone. Gradually, something changed inside the ancient mansion that didn’t see the light of day. It started out as a light to welcome him back. An extra blanket on his body as he fell asleep. A touch with a chilly air as he walked through the hallway. Later, hearing the young man crying and praying in the ancestral hall, the invisible “god” in the ancient house finally appeared from the darkness. “Come here.” He stretched out a pale hand, helplessly and dotingly.