One Piece: I am Imu - Chapter 286: The Rise of Academy City

A former sporting rifle shooter genius transforms into the ‘Juvenile Butcher’. While originally supposed to have received the death penalty, he was instead fortunate enough to have entered a secret and highly regarded armed force, throwing himself into the ‘Nirvana Project’.

After a period of 10 years, he now has time to freely recover. Having trained until he had excellent military and martial skill, he sweeps through various military districts and returns back to his hometown. Under the monitoring of a beautiful female cop, he re-establishes his family’s bodyguard service, protecting beauties and moving unhindered, his achievements causing the fame of his outstanding, god-level bodyguard service to resound across the world!

- Description from Novelupdates

A fighting genius.

Masterpieces such as 'The Divine Comedy', 'The Theory of Evolution', 'Encyclopaedia Britannica', 'The Theory of Relativity'...Born in the history of human civilization, possess mysterious and magical powers in another world!Original sin, biological evolution, mastery of all arts...By reading the secret tomes, one can gain a variety of powers!The only trouble for the people of the other world is that they find it difficult to understand the texts from Earth.At this time, there comes a librarian from Earth...

He was summoned by 3 milfs and 2 gilfs, only to realize he wasn't a typical hero with powerful skills.He was a hero with “gifted semen” which can boost battle power or grant random skills.Since then, there has been a long queue of women outside his inn to receive his “blessing”.Mature woman from east, powerful women from west, nuns from south and naughty milfs from south, they all chant his name from their slutty mouth.In bed, of course, Lol.