I'm looking for an urban killer novel, but I've read it a long time ago. Do you have any recommendations?

The content was like this. At first, the protagonist's organization sent someone to kill him. Then, the protagonist seemed to have killed that person. Then, the protagonist began to recall how he became an assassin in the past. When he was young, his parents died. One day, he met a person in the orphanage. He was the leader of the protagonist's assassin organization. He saw that he was smart and adopted him in name. The protagonist seemed to have a sister in the orphanage, but in the end, the protagonist was taken away and the two of them were separated. Then, the person who adopted the protagonist brought the protagonist to an island not far from Singapore for training. There were many children from various countries on the island, and it seemed like they were trained for a few years? (I forgot) A few hundred people survived, but only a few of them died. There was a mission where the protagonist was sent to America...
Sigh ~ Many people forgot that the protagonist met a beautiful girl on the plane from Singapore to the mainland of China during his first mission.
Then tell your little brother that I'm very grateful...
The protagonist is very powerful It was definitely not a fantasy novel, but an authentic urban killer novel. Not the Icy Artifact of the World and the Black List If someone tells me that it's ++++

Answer 1

I recommend the following two urban killer novels to you:

1. <Invincible Killer Pretty President>: Hades Killer and the iceberg president of the Billion Corporation are together under a marriage contract. What kind of sparks will happen when the two collide?

2. "The Reborn Killer": It was about the growth of a waste who was abandoned by the world and a killer. It was very real and sad. He was torn between being a killer and being reborn. Should he welcome a new life or another destructive trap?

I hope you like this fairy's recommendation. Muah ~😗