Yixing is a popular musician and celebrity. After almost ten years of being in public, he longed for love and a normal life. He wanted to settle down. One day, bored and unfocused, he was involved in a minor traffic accident. Junmyeon, a Korean exchange student, studying music in a university his dad owns in China was on his way to school with a traditional Chinese music instrument sling on his shoulders and a bicycle was hit by Yixing's car. Fortunately the latter has only had a small bump on his head. Yixing fell in love at first sight. He saw colorful butterflies and rainbows surrounding Junmyeon but Junmyeon was unphased by the popular stranger in front of him. Yixing wanted to get to know him. So he followed and learned that Junmyeon goes to a music school. Deeply in love, Yixing wanted to be close and get to know him, disguised himself as Zhang Jia Shuai, a countryside boy together with his PA, Baekhyun a Korean, too, enrolled in Junmyeon's school.