Kingdom. It’s a pseudo-historical (most overarching plot points are actual things that happened in history, but the minutiae are very “anime”) manga about the Warring States Period in China. Comrades in arms, sick fight scenes, and war crimes galore. Over 700 chapters.
Right? Training data is an absurd blob of everything the algorithm can get its hands on. It’s like trying to assure that there’s no alcohol or coca-cola in a lake.