My Sharingan Is Exposed, and My Childhood Friend Begs Me to Remarry Her

[Broken Engagement from the Start] [Urban High Martial Arts] [Feel-Good Power Fantasy] [Adorable Senior Student] [Decisive and Ruthless] The protagonist, Lin Xuan, transmigrates into a modern world where spiritual qi has revived. He obtains the strongest martial arts System in history and masters skills from countless worlds! The Mangekyo Sharingan, the Supreme Bone, the God-Demon Body of a Single Thought, the Limitless Technique... Many years later, alien races from the abyss return. Just as everyone is plunged into despair, a young man appears out of nowhere, descending before the world like a god. He gives a scornful smile. "I never thought keeping a low profile all these years would make everyone distant from me. Fine, I'll come clean!" "I am the strongest across all worlds!" But it all begins when his childhood sweetheart, whom he once cherished, breaks off their engagement...