The pairing name, Hotaru, came from an whisper game during Produce 48 that became an inside joke among fans. Another inside joke is that when IZ*ONE was in Hitomi's hometown, she joked that she was Miyawaki Chaeyeon while Sakura claiming to be Lee Kkura.
|Name||Birth Date||Position||Final Rank||Label||Color|
|Miyawaki Sakura||March 19th, 1998||Vocalist, Visual||2||Vernablossom||Pastel Pink|
|Lee Chae Yeon||January 11th, 2000||Main Dancer, Lead Vocalist, Lead Rapper||12||WM Entertainment||Blue Mint|