Who let him play Yu-Gi-Oh! (1-460).

Summary

You Xuan logs into a newly upgraded virtual system called "Virtual Child's Reality," where he creates an ID named "Happy Duel." Upon entering, he finds himself in a deserted, futuristic city with advanced technology and a central energy tower. He explores a shop but discovers that he cannot purchase cards directly in-game; instead, he must use physical cards. As he wanders, he encounters a chaotic warrior who reveals that the virtual space is more than just a simulation; it has connections to the spirit world. The chaotic warrior opens a gate to the elf realm, where You Xuan realizes he is in a projected form due to the Link System's technology. He explores the elf realm, which appears abandoned, until he is confronted by a group of demons who initially react aggressively but are confused by his calm demeanor. You Xuan decides to follow them, inquiring about their destination.

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