Good Day
| Name | Good Day |
| Company | C9 Entertainment |
| Fandom | Harus |
| Year Debut | 2017 |
| Year Active | 2 |
| Year Disbanded | 2019 |
Not Ranked
Good Day Member Ages
Good Day Age Ranking
Ranked from oldest to youngest.
| Member | Birthday | Age |
|---|---|---|
| 1. heejin | Aug 19, 1995 | 28 years old |
| 2. Green | Jan 07, 1997 | 26 years old |
| 3. Chaea | Jul 05, 1997 | 26 years old |
| 4. Ari | Jul 05, 1997 | 26 years old |
| 5. Chaesol | Jul 14, 1998 | 25 years old |
| 6. Jeewon | Apr 01, 1999 | 24 years old |
| 7. Ye Ah | Oct 09, 1999 | 24 years old |
| 8. Sunn | Feb 07, 2000 | 23 years old |
| 9. Bomin | Sep 24, 2001 | 22 years old |
| 10. Belle | Nov 03, 2001 | 21 years old |
Good Day Member Heights
Good Day Height Ranking
Ranked from tallest to shortest.
| Member | Height |
|---|---|
| 1. Chaesol | 1.70 m (5'7") |
| 2. Bomin | 1.69 m (5'7") |
| 3. Green | 1.68 m (5'6") |
| 4. Sunn | 1.67 m (5'6") |
| 5. Ari | 1.66 m (5'5") |
| 6. Jeewon | 1.66 m (5'5") |
| 7. Chaea | 1.66 m (5'5") |
| 8. Ye Ah | 1.62 m (5'4") |
| 9. heejin | 1.62 m (5'4") |
| 10. Belle | 1.61 m (5'3") |