I'm in a Fantasy World, So Why Did I Get a Xianxia System?

After transmigrating, Han Chang’an realized he might have fused with the wrong System. Though he was in a fantasy world, he had received a xianxia System. With no other choice, he decided to make the best of it! Others used the Giant’s Gaze secret art to grow ten meters tall in a flash. He used the Heaven and Earth Manifestation and grew a hundred thousand li tall! Others used the Thunderstep combat art to cover three thousand meters in one step. He used the Golden Light Traversal and covered three thousand li in a single step! Others used the Mountain-Bearing divine art to hoist a mountain onto their backs. He used Star-Shifting to move an entire world! The xianxia System assigns daily cultivation tasks. Completing them earns a month’s worth of magical power, which can boost cultivation speed tenfold or even a hundredfold, while breaking through bottlenecks becomes as easy as drinking water. From time to time, it issues missions to slay demons and exterminate evil, wipe out enemies to the last, avenge past wrongs, or show off and slap faces... Completing them earns huge rewards of magical power, all kinds of spells and immortal arts, countless magical treasures and immortal artifacts, and rare natural treasures that can improve one’s talent and aptitude...