Mansion No. 51 On Huaiguang Road is a very magical place. It is said that this mansion was built by a wealthy businessman in the French Concession during the Republic of China. The old building was converted into apartments for people to live in. The landlord's name is Zhou Huaiguang, who is said to be a doctor. Usually no one is seen, but occasionally "appears" to indicate his presence. Wei Lan is a talented girl. In order to show that she is a good independent child, she moved to Mansion No. 51 Despite her brother's obstruction. The first time Wei Lan saw Zhou Huaiguang was at night when there was a power outage in the mansion. He suddenly appeared standing behind her, patted her on the shoulder and asked her if she was okay. Please! Even if I'm okay, being slapped like this by you will give me a heart attack, right? Some of the tenants in Mansion No. 51 Are very strange: Sunshine photographer Cen Jin is a severe patient with secondary school syndrome. He is addicted to the second dimension but is unexpectedly afraid of cats! Chu Qingming, the student union president of University A. It is said that the name Qingming comes from the fact that he was born on Qingming Festival! Jiang Guyu, a senior executive of a company, is a royal sister. She is extremely beautiful but always fails in love. It is common for people to drink to drown their sorrows and then become drunk and crazy. Wei Lan said that she was just a young girl who had nothing to do but draw design drafts and earn a living, so why couldn't she have a normal neighbor!