The casting is really great together. The chemistry of Ahn Hyoseop and Kim Sejeong is really amazing, and also the chemistry of Kim Minkyu and Seol In-ah is awesome. The story is well made, and the actors are really good in portraying their roles. They act so well, that drama is so good to watch and very heart fluttering. It is a must watch drama that you will still love to watch over and over again.