She first complimented him with, "He's a friend who works extremely hard."
Goo Hye Sun then went into a lengthy description of his personality, "The vibe he gave off is similar to that of Lee Min Ho when I first met him. It was a very refreshing feel. Ahn Jae Hyun himself is very charming. [Based on his] appearance, you'd think he'd be cold, but he's very sociable and has a lot of aegyo. There are aspects that make him seem like an elder in a child's body. He has very good manners. He works hard. I'm learning a lot [from him]."