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” (adult mode)! However, the enemy that appeared before him (the Players) are the girl that he yearns for, Asagiri Ririko, and his other classmates that he recognizes. Asagiri and the others believe that they can return to their original world if they defeat the Demon Lord Hellshaft, but in truth, everyone’s lives will be in danger if the Demon Lord dies――!? In order to save his precious one, Doumeguri/Hellshaft will ambush his classmates with the strongest power!