On March 31, Zerobaseone revealed a spoiler film "Summer Came Early" at the end of their special stage performance at the 2024 KCON in Hong Kong and announced that they will be releasing their third EP in May 2024, hinting a summer-themed album.

[6] The EP's tracklist was released on May 3, consists of seven songs and Young K from the band Day6 revealed to have written the lyrics for the B-side track "Hello".

The opening track, "Solar Power", is a hip-hop song featuring strong bass and swirling electric guitars.

The lyrics expresses the will to present the best time so that the hesitations, worries, and concerns that all young people face can be forgotten and blown away.

The fifth track, "Sunday Ride", is a light and cheerful medium tempo song and expresses the desire to escape from everyday life and go on a trip somewhere.