Description copied from novelupdates.com:
Low in social standing in the school caste, Doumeguri Kakeru wakes up as the strongest Demon Lord Hellshaft, dominating the Virtual-Reality Game《Exodia Exodus》
Furthermore, he obtained the “Forbidden Power” (Adult Mode).
However, the players who appeared were none other than the girl he admires Asagiri Ririko and their classmates.
Asagiri and the others believe that if they are to defeat the Demon Lord Hellshaft, they can return to their former world, but in fact, everyone’s lives would be in danger if the Demon Lord dies――!?
And in order to save the people he treasures most, Doumeguri / Hellshaft attacks his classmates with his strongest ability!
(Please note that prologue and chapter 1 of volume 1 were translated by isekaicyborg at https://isekaicyborg.wordpress.com/)
Volume 1: The Demon King will not allow a game clear
Volume 2: I can’t wait for Santa-X
Volume 3: The Demon King that shouts poems between adult mode and paid items
Volume 3 – SS Chapter & Manga SS bonus (Done by 2 anonymous contributors)
Volume 3 – Additional Story (Done by 2 anonymous contributors)
Volume 4: The loner Demon King and the Cheat God form a false friendship
Volume 4 – SS Chapters (Done by 2 anonymous contributors)
Volume 5: A MAD video sends a death flag
Volume 6: Two elves and three predictions
Volume 7: My memories with the Platinum Dragon Princess return
Volume 8: What lies beyond the virtual and reality remains unseen