This Demon King Wants to Be a Partner of Justice

After traveling through time, Touma just wanted to be a gal male protagonist, but he was accidentally forced by a useless system and started a boring life of entering the two-dimensional world to collect popularity and become the devil king. The villain master of futago, the deep sea admiral of the ship girl, it seems that every world system will turn Touma into the villain. But Dongma would not simply give up the male dominance, and began to constantly fight against the system that tried to induce him to become the devil. He would tear up the title with his own hands, dominate the sea, and be inspired to be a righteous partner.