Legend of Ne'erland

Ne'erland is an MMORPG game that no one even created. Ne'erland was a fun game for some people before. Until the advent of the system and Parallel Ne'erland. Until parallel Ne'reland appeared with this strange system, Ne'reland was a very fun MMORPG game for youth. After the advent of these things, all the MMORPG gamers playing Ne'reland have mysteriously disappeared. After the disappearance of the players, the game was nowhere to be found. It was lost in the memories of the rest of the people. The families of the missing players seem to have never existed. This story is about different people from different worlds who will break the structure of Ne'reland. What is the secret of this game that suddenly attracts outsiders, including players?