MTL - Mystery Hunter - Chapter 245 failed marriage

A man reincarnates in the body of a boy who suffered a tragedy, only to realize that he is in the world of My Hero Academia. What's even stranger is that his quirk seems to have the abilities of Nen and Haki.

Ling Xiao was a powerful martial expert who fell in battle and was unexpectedly transmigrated into another world. He began life anew in the body of a boy with the same name, a fallen genius of the Ling Family whose cultivation had been crippled in a surprise attack, and son to a father who had also suspiciously been crippled under similar circumstances. Armed with knowledge from his previous life, Ling Xiao aim to restore his strength and establish his place at the top of this new world

- Description from Novelupdates

Being a doctor is hard. You need to go through four years of college and four years of phd, costing eight good years of your life and a giant amount of money, but still become a normal people. What else can you do? Well, someone has an answer. With a little luck, one can easily become the peerless divine doctor better than anyone in the city!

I just want to be different, no one can guess what I want to do, the more mysterious the more powerful.

- Description from novelbuddy