The name of this movie comes from the radio program of the same name. In the 1990s, Liu Yeol and Li Wenshi were both popular radio anchors. "Yoo Yeol's Music Album" will be broadcast at 9 o'clock in the morning. This movie is presented as a courtesy.

This film stars Jung Hae-in and Kim Go-eun. The two had a brief moment together in "The Lonely and Brilliant God: Goblin". He played the role of Kim Go-eun's first love baseball senior. Speaking of two people, They both have green and clean first love faces, and it would be so eye-catching to act in a romance movie together.

The story begins in the 1990s, when college student Mi-soo (played by Kim Go-eun) who runs a bakery and high school student Hyun-woo (played by Jung Hae-in) meet by chance. Although they fell in love with each other, they unexpectedly lost contact. As time passed, the two separated four times and reunited three times. It took them more than ten years to get together.