I Want to Be a Good Person, but I Do It Unconsciously

This is a dangerous world full of blood. Humanity has ushered in the alien colonizers, the turbid species. From then on, the turbid substances on the Yormont continent became more active and contained more. From then on, all living things evolved in this overwhelming turbidity. Animals evolved into spiritual beasts, were trained by humans into slave beasts, and were transformed into demi-humans by humans in order to complete their military service. Humans have also become advanced creatures, with bloodthirsty instincts in order to save their lives. Due to the characteristic of excessive purification called "cruel disease", they are unable to empathize with any creatures other than their own race. Technology is very advanced, mainly biotechnology. It is the power of a living thing. Biological weapons far exceed any original metal weapons. Ji Siye is a child living in a strange city. One day when he is 18 years old, his parents allow him to travel out of the city. He has been waiting for this day for a long time, but since he got on that strange train, he was thrown into the wilderness. Faced with the siege of wolves, he was driven by instinct to kill all the wolves. From then on, he began to understand a side of the world that he did not know.