The Little Prince in the Ossuary - Chapter 37

Harry was just an ordinary young man—until he stumbled upon a hidden world where the strong reign supreme, and Cultivation is the way to power.But fate had greater plans for him. Granted a God-tier system, he soon discovers a terrifying truth—his path to power lies in slaying beasts.[Congratulations, you have slain the Deathless Dragon.][You have reached Elemental master Realm][Congratulations, you have slain the Lion Emperor.][you have reached celestial sage realm.]While others were busy cultivating for years to level up.Harry was killing beasts.“You beasts are nothing but free exp”With each kill, his Cultivation increase, his abilities evolve.But Humans are not the only race in the vast universe, Earthlings got in fight with Dakis that gets strong by eating humans.Will Harry lead the Humans to victory or will get devoured by a daki.

Ever since an NPC named Shu ChunChun, who had been taken advantage of and used carelessly by the world-hoppers, awakened her consciousness, she knew that the only way to drive out the world-hoppers was to make them fall for her, HARD.

- Description from Novelupdates

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...

A world where one’s life was decided by one’s talent called Gift.
The main character Erio Scarlet who was born in the house of influential noble family that had produced a lot of Holy Knights manifested a suspicious gift Incubus in the conferment ceremony. Furthermore the skill attached to that Gift was only one embarrassing skill called Peerless.

Erio was banished from the city because there was no way his indecent existence could be permitted in a family of Holy Knights but……somehow he went through an amazing growth when he dealt with his horniness though!?

In addition when his childhood friend who was bestowed with the Gift Sacred Knight chased after the main character because of her love for him reverse ra-……did it with him, a lot of powerful indecent skills showed up and on top of that they even got bound by Master-Servant contract……!?

This was the indecent heroic tale of the boy who was gifted with indecent Gift rising in the world while [getting along] with a lot of girls.