Your Typical Righteous Xianxia Hero Story

Wei Rongyu's dream was to succeed his father as the greatest general in the Kingdom of Wu. However, all his years of hard work for training as a Knight went down the drain when the neighboring Kingdom of Han colluded with the Invaders from Mongol and brought hell upon his nation.

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If the title doesn't tell this enough, then yes this is inspired by Ave Xia Rem Y and several other Xianxia that exist.