Izumi is a 14 year old boy who lived in the huminized dimention who worked at a sea cortell,he loved working for his parents if it made them happy. Then one day, he is kidnapped by a demon named Saloman and brought to the demon world, but then it turned out to be the fact that his parents sold his soul to the demon. It turns out Saloman isn't as mean as he looks, he is begging Izumi down on his knees to be his grandchild. "Please oh please, will you be my grandson Izumi" begged Saloman. Izumi had never once refused a request in his life,so of course he couldn't refuse this one (because he was a degenerate). "Great!, If you had refused i would have had to eat you instead" Saloman said excitedly.