Ultimate Assassin in Isekai - Ultimate Assassin in Isekai, #5

In the modern era, an assassin named An Fei unexpectedly dies. His soul is summoned to another world by an evil sorcerer, taking residence in a young boy's body. This young boy, originally an experiment of the sorcerer, gains a chance to escape his grim fate due to An Fei's soul inhabiting him. After successfully assassinating the sorcerer who summoned him, he cleverly steps on the corpse of his foe, climbing onto a branch of fortune.  ---  "You really can't find them?" There was a hint of grief in Buzureano's eyes."I can't.
Maybe my abilities aren't strong enough, " An Fei shook his head, looking at Buzureano with sympathy. When it came to how to focus the mind and achieve the state of oneness with nature, his family's martial arts had a complete set of methods.