
LOONA 1/3 [이달의 소녀 1/3]
- Debut (Y-M-D): 17-03-12
- Main Group: LOONA [LООПΔ]
- Label: Blockberry Creative
- Music Videos:
- Korean MVs: Love & Live, Sonatine, Rain 51db
- Albums:
- Korean: Love & Live [Mini Album], Love & Evil [Mini Album Repackage]
- Logo:

Members:

- Stage Name (Hangul): Vivi (비비)
- Position: N/A
- Represented by: April, Deer, Pastel Rose, Hong Kong
- Real Name: Wong Kahei (黃珈熙)
- Birthday (Y-M-D): 96-12-09
- Nationality: Hong Kong
- Height: N/A
- Blood Type: B

- Stage Name (Hangul): Haseul (하슬)
- Position: Leader
- Represented by: December, White Bird, Green, Iceland
- Real Name: Cho Haseul (조하슬)
- Birthday (Y-M-D): 97-08-18
- Nationality: N/A
- Height: N/A
- Blood Type: O

- Stage Name (Hangul): Heejin (희진)
- Position: N/A
- Represented by: October, Rabbit, Bright Pink, France
- Real Name: Jeon Heejin (전희진)
- Birthday (Y-M-D): 00-10-19
- Nationality: N/A
- Height: N/A
- Blood Type: A

- Stage Name (Hangul): Hyunjin (현진)
- Position: N/A
- Represented by: November, Cat, Yellow, Japan
- Real Name: Kim Hyunjin (김현진)
- Birthday (Y-M-D): 00-11-15
- Nationality: N/A
- Height: N/A
- Blood Type: AB