Comments of chapter undefined of 1453: Revival of Byzantium

The last three chapters are basically a carbon copy of a scene from Romance of the Three Kingdoms, specifically when Cao Cao's subordinate Xu Chu kills Xu You. I don't mind taking inspiration from other sources, but even most of the dialogue is taken almost 1:1 from the 2010 show. If this was a free fan-fic that's one thing, but I just paid actual money to unlock three chapters that were 90% xeroxed from another piece of media. Not cool 😐