Security Guard? I Am a Taboo in the World

He was once code-named "Dragon King", the man in charge of the behemoth [Dragon Gate] that spanned the world. A single thought could determine the life or death of others, and a punch could defeat thousands of armies. However, in order to keep his promise to his adoptive parents, he sealed up his glory, gathered away his sharp edge, and returned to the city as an ordinary veteran. I wanted to live a low-key life and protect the iceberg fiancée I had never met, but the dragon lurked in the abyss, and it was hard to hide its sharp edge. He flipped over a provocative luxury car with one hand and shocked everyone; he casually showed off his supreme black card and shocked the entire audience; he brought back the dead with his unparalleled medical skills, attracting big bosses from all over the world to rush to please him. Dare the ants of the past come to provoke you? Slap him away! Is the reclusive Guwu family arrogant? One step on the mountain gate! Are enemies abroad secretly watching? Then let the "Dragon Gate" banner sweep the world again!