Can you recommend a book about the male lead being an assassin? In the story, there was an organization where the male lead was initially a bodyguard, but it seemed that there was no real female lead?

[Description: The male lead is trained on an unknown island, which specializes in training killers.] She remembered that the male character's body temperature seemed to be lower than a normal person's in the end. In the forest where they were training at the end, when the python passed by him, he did not even notice it.
During the final training, many killers were placed in a forest with a tag hanging on their bodies. They would come out after three days. He had to bring at least five tags out, which meant that he had to kill at least four people to survive. It seemed to be a double killer, with Ling Yi being the male lead's follower. They met in the forest.

Answer 1

I recommend "The City's Invincible Bodyguard" to you. The male lead is a super killer who only knows how to kill, but he was sent to be the bodyguard of a beautiful president. The plot was that he was involved in countless disputes while protecting the beauty and became a super bodyguard. There was no real female protagonist in the novel, but the beautiful CEO and other female characters surrounded the male protagonist. I hope you like this fairy's recommendation. Muah ~😘