Xiandai Mo Nan Shoulie Jihua

The protagonist, a modern wizard (male), has lived for 168 years. He has always lived alone and strictly adhered to refraining from contact with human beings. Living such a life has naturally resulted in him being single. But one day, a dashing blond man appears at his company and inexplicably launches a passionate pursuit of him. What will he do?
(Source: Pocket Comics)