Chi Mu, a keyboard warrior in reality, was still scolding the Styx boy as trash in the livestream bullet comments yesterday, but waking up he finds himself transmigrated into this "trash lion". Understanding lions does not equal being a good lion; chased by crocodiles, rammed by buffaloes, and bitten by leopards, originally the overlords of the grassland, he gets rubbed on the ground by various animals of the grassland. With enemy groups pressing on the border and the older generation dying in battle, he leads his sister to flee eastward; see how the trash lion grows into the grassland overlord and the pride protector.