I'm a hidden boss in the duel city (yugioh fanfiction)

Note: This story is a fanfiction of a Yugioh Fanfiction. Summary: One night he suddenly found himself waking up in a familiar but fictional world. Later, he found out that he was in a Yugioh fanfic featuring a virtual reality game with dimension-hopping players. He just wanted a salted fish life and watch from the si...