It was released by Source Music on October 27, 2023, as the group's first English single and also served as a promotional song for the video game Overwatch 2.

[8] "Perfect Night" was written by Score (13), Megatone (13), Sofia Quinn, "Hitman" Bang, Amanda "Kiddo A.I."

Ibanez, Marcus Andersson, Lauren Aquilina, Jorge Luis Perez Jr, Huh Yunjin, Niklas Jarelius Persson, Zikai, Ninos Hanna and produced by the production team 13 and "Hitman" Bang.

It was directed by Woogie Kim and features images of the group members dancing to the song interspersed with animation produced by Blizzard, Overwatch 2's studio.

[6][13] During the 2023 SBS Gayo Daejeon, held on December 25, 2023, Le Sserafim performed a medley of "Eve, Psyche & the Bluebeard's Wife" and "Perfect Night".