Kep1er was originally scheduled to debut on December 14, 2021, with their first EP First Impact, with pre-orders beginning on November 29.

[1] However, it was announced that the group's scheduled debut had been delayed to January 3, 2022, due to one of their staff members having tested positive for COVID-19.

[2][3] On December 14, it was revealed that group members Mashiro and Xiaoting tested positive for COVID-19.

[7] Musically, the group is described as "dance song based on big room house genre" with lyrics about "Kep1er's bold aspiration to become the best and the promise to repay [their] fans who have supported and protected the nine girls' dreams".

[18] In New Zealand, the song debuted at position 24 on RMNZ Hot Singles in the chart issue dated January 10, 2022.

[32][33] On the third week of the song release, the group performed on Mnet's M Countdown on January 20, where they won first place.