Yasei no Last Boss ga Arawareta!

Lufas Maphaahl, the Black-Winged Tyrant and the leader of the Twelve Heavenly Stars, has been vanquished. A man wakes up in the body of the Exgate Online game character Lufas, two hundred years after her defeat at the hands of the seven heroes. The game world of Exgate he knew is no longer ruled by humans—and it is no longer just a game. Exgate is a world of its own where the characters think, feel, and live just like he does. Lufas journeys through Exgate, looking for the long-disbanded Twelve Heavenly Stars. Lufas is without country, army, or allies. A question remains: what is the real reason an ordinary man was reincarnated into Exgate as Lufas?