Boss’s Death Guide - Chapter 91 - Anemia

An ordinary student, a wretched peeper, a cowardly teenager with a kind heart. In a terrorist attack, he inherited the knowledge of countless elites, embarked on a path of God Jagged Tu…

He is an artist!

He is a mathematician!

He is a psychology Doctor!

He is a master of fighting!

In fact, he is a man

Taken off raw site:

A wretched, dirty young man is working during the summer when he was caught up in a mysterious explosion. After that explosion, the young man is then left with the memories and knowledge of dozens of the world’s experts.

He has changed, his heart has become cold, iron-blooded. He became a killing machine, his mind turned mechanical, calculative. Everything goes according to his plans and calculations!

In this magical, slaughterous world, a door is opened for him…

- Description from Novelupdates

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

This is the story of a man who grew up with everything—money, love, family, status—but in isolation for being unique, abnormal... an anomaly.He finally gets a chance to show his skills, his talents, his potential to the world.On that fateful day, during his Awakening ceremony, not only did he awaken his abnormally strong innate ability, but he also found out he was being rewarded, loved, favored by the system.This is the story of a man who is undefeated by anyone and anything, a man who grew powerful beyond imagination, a man who rose to power on his own.This is the story of a man who turned many worlds upside down, stopped many wars, won many battles, dethroned kings, and became kings of many.This is the story of a man who represents both balance and imbalance, holy and unholy, good and bad, light and dark, pure and impure, positive and negative, order and chaos.It all started when the system started favoring him.Watch Sam grow from an ordinary noble to the most powerful entity in the entire universe while he finds many buried secrets about his origins, about the system that governs every being in the universe, and why he is being favored by the very system.There was none like him, and there never will be.

Corporate slave Reiji went to another world one day, made one rank higher potions, and li~ghtly made a killer profit!

He used that money to open a drug store, and troubled people who heard the rumors came over…

Eyedrops for an elf troubled over his failing bow aim!

Cough syrup for the dragon that unintentionally releases his dragon breath!

Reiji makes medicine for troubled people, enjoying his leisurely slow life in a rural city.