Fact file
| Name: | Kim Ji-soo 김지수 | |
| DoB: | July 17, 1986 | |
| Place of Birth: | Jungnang-gu, Seoul | |
| Height: | 5'5" | |
| Weight: | 50kg | |
| Siblings: | A younger sister | |
| Hobbies: | Musical theater, playing the piano, flute, and guitar, web surfing, watching movies, competitive DDR | |
| Favourite singers: | Radiohead (band), Norah Jones, Jill Scott | |
| Favourite food/drink: | Creamed-up hotteok sandwiched with more hotteok, milkshake | |
| Question & answer: | Q: If you had to give up everything but one item during an armageddon, excluding survival tools, what would it be? A: The 5-year photo scrapbook I delicately made before I blossomed into a solo singer. |