Xiao Shou was misdiagnosed with depression by a doctor (actually due to lack of care), and was later exposed by Xiao Gong, a banker with a really antisocial personality who pretended to be depressed. As a blackmail, Xiao Shou had to be forced to take care of Xiao Gong as his "medicine" all the time.
Gentle, sinister and scheming Jiang Jingxing x Friendly and world-weary policeman Mu Weichen
There will be some dark descriptions, but most of them are artificial.
Purpose: Antisocial personalities also have a chance to be redeemed