A world where taming monsters is the mainstream to survive. Cloud, an orphan from the slums, suddenly recovered his memories of a previous life. A man living on modern Earth, and an avid fan of sexy monster girls.

Running away from the constraints of his current life and starting anew, he decided to throw away his name and live as just "Will".

Join Will on his journey to pursue strength that will not bow to anyone. With support from his army of sexy and dangerous monster girls!