Sorry, The writing of the adventure became the Devil's. Manhua

Title: The Devil's Adventure In the depths of the Forgotten Realm, where shadows danced with malevolence, Demon Lord Vellmort XIII reigned supreme with an insatiable crave for conquest. His crimson eyes flickered with boredom, yearning for a thrill beyond the mundane rituals of his dark domain. It was in this moment of restless discontent that a daring idea crept into his twisted mind - to venture into the uncharted lands above, where mortals tread in blissful ignorance. With his loyal maid, Sarah, at his side, Vellmort ascended to the Surface, a world bathed in ethereal light and buzzing with life. The sights and sounds of this realm ignited a primal hunger within the Demon Lord, sparking a fire in his soul that had long been extinguished by routine. As they ventured further into the unknown, whispers of their presence reached the ears of the Surface dwellers. Fear engulfed the hearts of the mortals, and they called upon their bravest warriors to face the demonic intruders. Vellmort smirked at the challenge, relishing the prospect of a battle unlike any other. But as the clash of steel and magic echoed through the battlefield, a twinge of doubt wormed its way into Vellmort's mind. The humans fought not out of malice, but out of a deep-seated love for their world. Their determination to protect what was theirs struck a chord in the Demon Lord's icy heart, thawing the layers of darkness that shrouded his soul. In a moment of clarity, Vellmort hesitated, his once-deadened humanity resurfacing from the depths of his being. The realization of the wanton destruction he had wrought hit him like a thunderbolt, and as he fell to his knees, Sarah's tear-streaked face blurred before his eyes. With a heavy sigh, Vellmort made a vow to right his wrongs, to seek redemption in a world he had sought to ravage. The Devil's adventure took an unexpected turn, leading him down a path of self-discovery and transformation, where the line between light and darkness blurred, and the true meaning of power revealed itself in shades of gray.