MTL - Marvel: Start with Summoning the Shadow Troopers - Chapter 23

Despite being the ruler of a nation, nobody was willing to marry the vicious man with a bloodlust.

Su Xiao is a cold-blooded teenager who’s seeking vengeance for the death of his family, yet things ended up badly for him.

As he was taking his last breaths, he heard a voice calling him from dimensions, it was a strange system reaching him, asking him if he wanted to be saved, to be Reincarnated.

He just needed to accept a contract, Su Xiao didn’t have any choice but to do so, but he didn’t know what he signed up for!!

Traveling through worlds, doing extremely dangerous missions, collecting special items, leveling up, and even killing Protagonists…

But Su Xiao wasn’t any ordinary Contractor, Su Xiao was a Hunter!

The MC crosses over to: One Piece, Tokyo Ghoul, Naruto, Fullmetal Alchemist, Attack on Titans…

- Description from Novelupdates

A man who was once called the world strongest agent ended up becoming a teacher after his retirement to train the new generation of agents. After many years of training his disciples, he is killed at the age of 60 by the ploy of a secret organization and was reincarnated in another world with all his past memories.Though he was surprised by the magic and the strange species of that world, he adapted very fast to his condition as a newborn and took advantage of it. He acquired special magic and gained a massive amount of strength thanks to his tight discipline in order to reach his goal: resume his career as a teacher which he left halfway through in his previous life.This is the story of a man who based on the memories and the experiences of his previous life, became a teacher who travels through the world with his new students.

Chen Mo transmigrates into the Battle Through the Heavens world and binds with the Goddess Favorability System.For every point of favorability he gains from a goddess, he receives a corresponding reward from the system.【Ding! Bound to the goddess—Die Ba!】【Ding! Favorability +1. Received a Tier 1 Pill: Accumulation Pill. Hand-holding bonus triggered—gained one incense stick’s worth of enlightenment time.】Looking at the woman before him, Chen Mo exclaimed in shock, “Isn't this Queen Medusa's younger sister?”