Tensei Shitara Slime Datta Ken: Clayman Revenge転生したらスライムだった件: クレイマン Revenge ; That Time I Got Reincarnated as a Slime: Clayman Revenge ; О моём перерождении в слизь: Месть Клеймана ; TenSura: Clayman Revenge

Taking place after Clayman's defeat in the main story, he reawakens in the past retaining his memory of the events that led to his death. Will Clayman be able to overturn his fate, and will it be for the better or worse?