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Zhang Tiesheng, a disabled young man, unexpectedly received the inheritance from the King of Medicine.

Ordinary, as his name suggests, he is very ordinary. By chance, he found out that his boss was actually a magician. Since then, he has been cultivating demonic energy, practicing spells, building a military regiment, killing traitors, killing angels, and slaying gods, becoming the supreme demon lord, and interpreting an extraordinary legend!