The world's creatures are super evolving, but humans have been excluded from evolution. Humans, who originally stood at the top of the food chain, have become nutrients for the evolution of mutated creatures... If you want to survive, you must participate in evolution! ... Potion! Biofusion! Hybrid experiment! Organ modification! Everything is just to survive in this violent era! ……Survive! And lead more people to discover the truth of the doomsday...
