Myriad Worlds is an immersive full-dive online game jointly launched by several gaming companies around the world. Xia Yuan, a rich second-generation heir who plans to live off his parents' inheritance and spend his days doing nothing, uses a lifetime's worth of luck to snag one of the only 1,000 beta-test slots for Myriad Worlds worldwide. On the eve of the game's public launch, Xia Yuan discovers that, apparently due to a small mistake by the scheming developers, Myriad Worlds has become a real alternate world, and it seems to be showing the slightest signs of invading reality. Years later, Xia Yuan has become the strongest person in both worlds, despite understanding none of it and building his success entirely on the insider knowledge he slipped into the map back then. He says, “Sure, the beta wiped our progress, but you can't imagine how much game knowledge the beta players had!” (Lighthearted + semi-invincible + multiple heroines + no transmigration, no rebirth) (Both xuanhuan and Western fantasy) (I'm a new author, so please go easy on me.)