f5ve (formally known as SG5) is a Japanese girl group co-managed by LDH JAPAN Inc., Three Six Zero, and WME. First revealed during the Anime Central 2022 event in Chicago, the group consists of five members Kaede, Ruri and Miyuu, who were all members of E-girls/Happiness and Rui from iScream.

The group’s initial concept was a musical take on the characters from the anime 美少女戦士セーラームーン (Sailor Moon) f5ve made their official debut on 1 March 2023 with “Firetruck.”

However, in April 2024, the group announced a rebrand via social media accounts, with a new concept of “inter-dimensional dream agents from Tokyo, Japan” and announced the group would be renamed f5ve. They made their comeback on 4 May 2024 with the second digital single “Lettuce (レタス).”

On May 5, 2025, the group released their debut album, SEQUENCE 01 and it’s deluxe version, SEQUENCE 01.5 (dreaming of the 2nd 1st impact – consequences of fate redux) in late-2025