Traveling Through Another World, Awakening the Killing System at the Beginning

[It is detected that the host encounters a fatal threat, and the original will strongly conforms to the core law of 'killing'...] [Conditions met...] [Killing system... Activate binding! Killing is truth! Death is currency! In his previous life, he was the feared "Night Owl" in the underground world. He had experienced countless desperate situations and was used to dancing on the tip of a knife and reaping life on the verge of death. He never thought that a well-planned betrayal and a violent explosion would send him to such a strange world and stuff him into the body of a useless person named Lin Mo who was as cowardly as a lamb. What's even more ironic is that not long after he opened his eyes, what greeted him was not a new life, but another naked attack from so-called "relatives"...