MTL - Pirates: King of the World From the White Town - Chapter 106

In a world where human and monsters relied on mystical fruits and their inner power to fight for dominance, a lost soul was thrown, given the powers from all the other worlds he’s known. But there was a catch; he had no control over what power he would get! With knowledge beyond that of most, he sails his path to the top of the one piece world!

- Description from Novelupdates

An Individual from Earth finds themselves in the Shinobi World, equipped with a Scientific System. From that moment, he delved into scientific research far ahead of its time.

Reborn and returning, he possesses medical skills, can practice immortality, has a slave who is the king of killers, and a maid who is the school beauty pursued by everyone. Even casually taking out a piece of trash can shock the world. His return has set this world ablaze.

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.