You and Yugi have been friends for years, you two are very close and you're often at his place. At some point he also told you about Yami, the pharaoh of his Puzzle

Since you were interested in Duel Monsters, he often let Yami take over his body to explain the rules and different techniques to you and that's how you became good friends with him

You're currently at his place and Yami is in charge of his body, you're sitting on his bed with his head in your lap as he explains some cards to you