ILY:1 (아일리원)
- Debut (Y.M.D): 22.04.04
- Latest Album Released (Y.M.D): 24.04.04
- Label: FC Entertainment
- Music Videos: Love In Bloom (사랑아 피어라), Que Sera Sera (케세라세라), Twinkle Twinkle (별꽃동화), My Color, To My Boyfriend (내 남자친구에게)
- Discography: Love In Bloom, Que Sera Sera, Thanks To…, A Dream of ILY:1, New Chapter, To My Boyfriend (내 남자친구에게), IMMM
- Fan Club: Only:1
- Symbol:
OFFICIAL SITES:
- Daum Café
- Homepage
- Youtube
- Twitter / Instagram / Tik Tok
- Hana @ / h.hana__0227_
- Ara @ / ma_li_mo_0123
- Rona @ / hellomila_0605
- Ririka @ / nogiririka
MEMBERS:
- Name (Real Name): Hana (Hayase Hana)
- Hangul: 하나
- Position: Dance, Vocal
- Birthday (Y.M.D): 00.02.27
- Nationality: Japanese
- Height: 165cm (5ft 5in)
- Blood Type: AB
- MBTI: INFP
- Sub-Unit: N/A
- Name (Real Name): Ara (Lee Yunji)
- Hangul: 아라
- Position: Vocal
- Birthday (Y.M.D): 02.01.23
- Nationality: Korean
- Height: 158cm (5ft 2in)
- Blood Type: O
- MBTI: ENFP
- Sub-Unit: N/A
- Name (Real Name): Rona (Chang Ching)
- Hangul: 로나
- Position: Vocal
- Birthday (Y.M.D): 02.06.05
- Nationality: Taiwanese
- Height: 165cm (5ft 5in)
- Blood Type: O
- MBTI: ESFP
- Sub-Unit: N/A
- Name (Real Name): Ririka (Kishida Ririka)
- Hangul: 리리카
- Position: Vocal
- Birthday (Y.M.D): 02.07.02
- Nationality: Japanese
- Height: 162cm (5ft 4in)
- Blood Type: AB
- MBTI: ENFP
- Sub-Unit: N/A
- Name (Real Name): Nayu (Kim Ye Won)
- Hangul: 나유
- Position: Leader, Vocal
- Birthday (Y.M.D): 02.07.23
- Nationality: Korean
- Height: 157cm (5ft 2in)
- Blood Type: O
- MBTI: ESFJ
- Sub-Unit: N/A
- Name (Real Name): Elva (Lee Yong Hwa)
- Hangul: 엘바
- Position: Rap, Maknae
- Birthday (Y.M.D): 03.05.05
- Nationality: Korean-Taiwanese
- Height: 170cm (5ft 7in)
- Blood Type: B
- MBTI: INFP
- Sub-Unit: N/A