As our humble corporatist Itonami Norio is suddenly summoned to another world, it would look as if he'll be sent to a battlefield-- he, however, holds no skill to speak of, and as he is deemed to be useless. He negotiates with The King and receives a plot of land -- an empty, deserted plot of land, with no inhabitant in sight. Norio holds something he couldn't bring himself to tell anyone: The Master of Supremacy, a gift which will grant him the most comfortable of lives in this world. Hereby begins the Norio's colorful story -- having a mermaid he fishes declare herself his wife, becoming neighbors with the Undead King, this is his busy but enjoyable life -- and now a dragon appears ?!

The dark soldier Dariel (30 years old) who can't use magic while in an army of demons, was fired for his lack of capacity. His desperate second life has begun in a human village where Dariel has arrived!