After dying from overwork, office worker Luo Qing binds to a "Make Friends with People Who Lack Love" System. From then on, he works diligently and sets out on the path of a model employee.
Former title: Days of Being Brothers with a Yandere
[PS: The protagonist has some harem-protagonist appeal, but this is definitely a committed one-on-one romance.]
Theme: If you encounter someone like this in real life, call the police immediately.
