The card shop manager is a character in Yu-Gi-Oh! The Sacred Cards, who manages the RPG Hobby Trading Cards shop. He is based the card shop manager from the manga and anime.
The player may buy and sell cards with the manager in the shop. If they attempted to Duel him, he would say that he is a card dealer and does not Duel.
After the player defeated Arkana, the manager was replaced by the new card shop manager. He was said to have gotten sick and returned to his home in the country.