Describes the life of a high school graduate in another world, in an era where strength is the main thing. He has learned a way to evolve by devouring the soul of monsters. Of course, he can also devour different fires to make alchemy. But the most important thing is to The primordial spirit that devours the oriental dragon, the green dragon, the white dragon, the black dragon, the golden dragon, the yellow dragon... Do you want to devour the beasts, okay, let's start with the cockroach devouring! He never wanted to become so powerful, he just wanted to be in the sect with his junior sister Living a life like a honeymoon. He never wanted to meet so many beauties, but when his character broke out, he couldn't stop the flying blessings even if he wanted to.