Wandering into a Forbidden Area by Mistake and Being Taught Kung Fu by the Demon Lord

Ye Xiao, an outer disciple of the Righteous Sect, was framed by his fellow disciples and accidentally fell into the sect's forbidden area - the Demon-Suppressing Abyss. At the bottom of the abyss, he did not find the legendary immortal fate. Instead, he met the first demon king of all time who was about to fall. In order to prevent the orthodoxy from being cut off, the Demon Lord forcibly poured his life's skills and a [Heart Seal of the Demon] into Ye Xiao's body.