He Swallowed the Universe

Benjamin accidentally swallowed the universe when he was a small, young boy. To him, it was nothing but a pebble, but to the millions of cultivators in the universe it was the most precious cultivation resource ever created. However, for someone at the age of four, swallowing a universe takes its toll. At the age of twenty-one, he never had a girlfriend yet, and grew a prodigiously large stomach which gained him the nickname of meatball. Will this meatball, however, be just what his world needs to stop it from being absorbed and swallowed by a greedy cultivator, or will Benjamin swallow him first?