Disebabkan sebuah keajaiban, Mina dan Mark bertemu dalam sebuah mimpi. Awalnya, mereka benar menganggap ianya hanya mimpi. Namun mereka mula menyedari sesuatu apabila mereka sering bertemu setiapkali mereka tidur dalam waktu yang sama.

  Mark Lee and Kang Mina were friends since they met during school. During their graduation ceremony, they met up and celebrating each others' success in school. Now, they become idols and also MCs for Music core. One day, they began to develop feelings for each other and tried to cherish their moments. However, it wasn't that simple. Delusional fans and