In Yu-Gi-Oh, but Mechanical Ascension (1-148).

Summary

John Anderson, a newcomer at the Duel Academy, excitedly challenges You Feng, a respected senior. Initially, he is reprimanded by his peers for being rude, but You Feng reassures him, appreciating his enthusiasm for dueling. During the welcoming ceremony, Principal Jiao Dao introduces the Cobra Professor and announces a welcome duel. John eagerly volunteers to duel You Feng, and they both take their places on the dueling platform. As they prepare to start, You Feng plays a card that allows him to summon a monster, the Scrap Synchronizer, setting the stage for an intense duel.

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