This week's Crazy Star is Kim Min Jun. He shows off all kinds hobbies from scuba diving to cooking. He is known to be the rich of hobbies. However, he presents a new hobby. It's the piano. He has recently fallen in love with playing the piano. In order to master such art before it's too late, he heads to piano class. However, things don't actually go as he hopes for. Will he become the prodigy of his dreams?