MTL - Invincible Exchange System - Chapter 438 Old man and child!

Ding Ning was just an ordinary youngster from a small border town in southwest China, but he had learned tremendous medical skills from his masters since his childhood. After graduating from college, he stayed in Ninghai City and tried to seek a job in a hospital there, but things did not go well at first. However, he accidentally saved Shen Muqing who was from a rich and powerful family, and then got involved in the confrontation between Ninghai special police team and a mysterious organization called Vampire Mercenary Group in order to protect Ling Yun who was his landlord’s daughter. It became the turning point of his life. After that, he started an incredible adventure during which he would find out the real identities of his father and masters and discover the secrets behind the mysterious organization Vampire Mercenary Group and the special weapons and tactics team Dragon Soul…
The story tells about how he opened nine apertures, fought with rogues, chased after various pretty girls and established a rich and powerful family by himself. He climbed up to the peak of his life step by step, and finally became medical sovereign.

- Description from Novelupdates

On the surface, he is the aloof and standoffish patriot whose sole purpose is to serve the nation. On the darker side, he is an invincible, powerful and mysterious man.

The second moon marked the beginning of a revolutionary change.

With the emergence of monsters and dungeons in modern society, and the ability users who fight against them, the world faces a shift in its paradigm.

It heralds the advent of a new energy source and the decline of traditional occupations.

Common sense thus becomes warped and imagination becomes reality.

When Demon Lord, Syryn Nigh'hart, found that he had gone back in time and turned into his child self, he had assumed to do better with his second life. Commit smaller crimes, keep away from burning villages and inciting other demons, contribute to society, abide by most laws, you know? But then the hero, his old friend, had to fall in love with him and ruin his plans.

Goddess, I cannot take responsibility for your champion, Rowan Windwalker, getting bent. Please don't strike me down!

#Gold Tier winner of WPC (forgot the contest number)#y'all this shit gay so don't go walking in expecting it to not have men sucking faces#N̶o̶ ̶h̶a̶r̶e̶m̶(my dumb self thought harem means mc marries many lovers)#Reformed and immature demon lord (but he's nice now okay. He isn't psycho.) #Hero is an extremely patient man for putting up with the demon lord's nonsense # MULTIPLE POTENTIAL LOVE INTERESTS #Slow Romance#Slow like you have to wait for around 40 chapters (smut too) before it starts #Patience is needed #Lots of it#alternate day updates because I have to study#english is neither my first nor second language so bear with me#The cat is not the ML ಥ‿ಥ some of you are getting the wrong idea.