I've Already Confronted the Five Kage, and the System Just Arrived! - Chapter 239 - 240

Regardless on how developed a society becomes, assassins and prostitutes will never cease to exist. There’s no need to think of the former as anything mysterious, and there’s no need to look down on the latter. They are simply doing their jobs.

When Tang En crossed over planes, he was forced into this murderous and hopeless profession.

“You have great talent for assassination.”

Tang En: “Huh, I have this kind of talent?”

“That’s right, your looks are exceedingly plain, this is very useful to assassins.”

“……” Tang En, “But I haven’t even managed to kill a chicken.”

“Irrelevant, assassins don’t need to kill chickens, only people.”

“……”

The story is about a plain college graduate crossing over worlds after dying in an awkward situation. Inheriting the game-like Assassin System and a badass butler from the transition, he now has to adapt to survive in this dangerous, new world. Set in a Western Fantasy Universe.

- Description from Novelupdates

My older brother, who was my only family member, lost his memory. “I have a sibling? Are you kidding me?” He was a fool who cared for me ever since he brought me from the temple… “I can’t even take care of myself, so what is this…” I left the family because I didn’t want to be a burden to my older brother, who had no memory, and was helpless in the tragedy that followed. So I turned back time. That too, to the point when my brother lost his memory. “I don’t have anything in my head, so I don’t know what to do next. What if I have a kid with me?” We must not repeat the tragedy of the past life. So I grimly said, “That’s right. I don’t have anything on my brother’s head right now.” “…What, what?” I chuckled and took out a document I had prepared. The contents of the document, written in crooked, large letters, were simple. [I transfer all the property in my name to my younger sister.] While my gaping older brother was checking the documents, I took out his seal from his drawer and smeared it with ink. Then I put it in his hand and said with a very sad expression. “So stamp it. Now.” I will protect you in this life.

Kaelen Dragonyx, a boy who lost both his parents and his mentor in the most ruthless way possible, decided in his heart to become the strongest swordsman in the world to protect the last remaining family he had, which is the only child of his mentor and his childhood friend.But along the line, he discovered that he is the most talentless boy of the generation which made his road towards being the strongest swordsman to be much further away and daunting than he could imagine. Be he didn't give up until he stumbled upon a sword that drastically changed his fate.

The world’s top ten conglomerates had joined forces to create a programme where the crew had quietly evacuated all the people from a city, leaving behind only Raymond and his family, who were kept in the dark. Their purpose was to see this child, who had emerged from the slums of America, get humiliated.