The bottom of the school caste, Doumeguri Kakeru, is transmigrated into the one who reigns as the strongest in the VR game Exodia Exodus, the Demon Lord Hellshaft. Moreover, he has even obtained the “forbidden power” of adult mode! However, the enemy that appeared before him (the Players) is the girl he yearns for, Asagiri Ririko, and his other classmates that he recognizes. Asagiri and the others believed that they could return to their original world if they defeated the Demon Lord Hellshaft, but in truth, everyone’s lives would be in danger if the Demon Lord died. In order to save his precious one, Doumeguri/Hellshaft will ambush his classmates with the strongest power.