This Handyman Disciple Slapped the Demon Lord

[Oriental Immortal] + [Oriental Fantasy] + [Fantasy Immortal] + [Slap in the Face] The handyman disciple Lin Fei is everyone's punching bag. He has low qualifications and allows others to bully him. He just sweeps the floor silently every day and accepts all humiliations. Until one day, the color of the world changed, and the peerless demon king who had been sealed for thousands of years broke out of the seal. His demonic power was overwhelming, and the entire world of cultivation was in danger. The leader of the Qingyun Sect was seriously injured, the sword formation formed by the elders was like paper, and the genius son was trembling. Just when the Demon Lord stepped on the sect leader, looked down at all living beings, and laughed wildly, "Who else?", The handyman disciple who had been silently sweeping the floor put down his broom. Amid countless looks of astonishment, disdain, and despair, he stepped forward step by step, passing through the overwhelming demonic power as if he were passing through an uninhabited land. Then under the gaze of everyone, he raised his seemingly weak hand—— "Crack!" A clear and resounding slap was slapped on the face of the arrogant Demon Lord. Time seems to stand still. The Demon Lord covered his face and looked at the weak young man in front of him in disbelief. For the first time, fear from the depths of his soul appeared in his pupils, and he tremblingly spat out the name that had been annihilated forever: "... Is it you?!"