Tensei Shitara Slime Datta Ken: Clayman REVENGE
That Time I Got Reincarnated as a Slime: Clayman's Revenge·転生したらスライムだった件 クレイマンREVENGE
Clayman, a demon lord, was defeated by Rimuru at Walpurgis. As he neared death, he obtained the unique ability "Regressor," which sent him back to his room 70 years earlier. He now believes this time travel is genuine. He seeks to prevent the errors he made before, hoping to change his fate. However, it remains uncertain whether he can escape his predetermined future by using the knowledge from his previous life.
