KUZUNO Sekai was transported to a medieval fantasy game-like world (isekai). He was given a game controller with the ability to stop time and a 3 days countdown timer. Now he has to figure out the mechanics of this game world and clear it in time.
500 years after the strongest demon lord was defeated by the heroine Mia, Al, the lowest adventurer, who was tricked by the hero (a descendant of the hero Mia) and obtained a cursed sword. However, the sword caused Al to regain all the power and memories of the demon lord. As the reincarnation of the demon lord, Al embarks on a journey to eliminate the rotten heroes.
With the hero's party having grown past the need for his training skills, the protagonist Aega finds himself sacked. In lieu of a cash severance pay, he's granted dominion over the territory of Tokumo. However, his new domain may hide a shocking secret...!Source: MANGA UP! Global