Sungmin is one of the most powerful and dangerous mythical beings. The Japanese royal demons also known as Oni. He hides his identity behind the facade of a shy and cute nerd. Kyuhyun is a freshman and Sungmin is a senior in Seoul College. They both chose music and mythology as a minor. As if fate wanted it the music and mythology class is mixed with freshmen and seniors and they sit next to each other. Kyuhyun doesn't know yet that he is going to be in a dangerous friendshi