Bastion Misawa is one of the protagonist's in Yu-Gi-Oh! GX. He is the top Notcher of the new comers entrance examination of the Duel Academy. He came to the school at the same time as Jaden Yuki. He's very analytical and he based his decks on scientific formulas. Bastion and Jaden treats each other mainly as friends and sometimes rivals. He resides in Ra Yellow dormitory.