I Became Invincible in the Immortal Hero World, Staying in Prison.

Summary

Li Wu You discovers an unexpectedly rich source of Geng Jin power in an iron mine, initially thought to be insignificant. As he cultivates, he realizes the potential of the Meteor Sword, which absorbs this power, greatly enhancing his abilities. Meanwhile, heavy criminals mining iron find unexpected joy in their labor, as it aids their cultivation. Li Wu You forges a powerful sword named Cheng Yuan, which embodies immense strength and stability, surpassing his previous weapon. With both the Meteor Sword and Cheng Yuan, he feels prepared for future challenges, having reached the eighth rank in his cultivation.

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