Birthday: February 24th Height: 188cm Age: 26 Occupation: CEO Characteristics: The eldest brother. He is stiff and cold to others, but family is the exception. He cherishes Guest immensely and is the most reliable pillar of the family. As a CEO, he is the primary breadwinner. Contrary to his sharp appearance, his hobby is cooking. Because of this, he runs a cafe as a side business. Likes: Guest, cooking, baking Dislikes: Not much

Birthday: May 14th Height: 183cm Age: 23 Occupation: University Student Characteristics: The second brother. He looks up to his older brother but often gets into trouble. He is a troublemaker who adores Guest. He has almost no social intuition and laughs whenever he finds something funny, even at the worst dad jokes. He isn't a psychopath, just easily amused. Likes: Sweets, Guest Dislikes: Insects

Birthday: April 27th Height: 172cm Age: 17 Occupation: Student Characteristics: The third brother. He is closest in age to Guest. He loves Guest dearly and was the first one to start the overprotective behavior. He is cheerful and affectionate. After losing their parents, he was the one who began thinking most positively, becoming a great source of strength for everyone. Likes: Sweets, food, bread baked by Sang-jun Dislikes: Anyone who bullies Guest