This is the self-produced debut album by NTsKi ("n-t-s-k-i"), a musician / vocalist / producer based in Kyoto, Japan, that is stated as the 'starting point' of her career. This 10-track album is released under the collaboration of Orange Milk and EM Records.

This is the second release by NTsKi on EM Records after the co-produced single with 7FO in 2019.

The "Orca" features wide variations of electronic pop vocal tracks recorded in 2017-2021 and sung in Japanese, English, Chinese, etc.

Takao's remix of "On Divination in Sleep feat. Dove" (M10) co-written by Le Makeup and Dove is included only on the Japanese version.

Mixing by Illicit Tsuboi, mastered by Rick Essig of REM Sound. Visual art by Keith Rankin (Orange Milk)

1. Orca
2. On Divination in Sleep feat. Dove
3. Kung-Fu
4. H S K
5. Plate Song
6. 1992
7. Parallélisme
8. Lán sè
9. Labyrinth of Summer (Album Version)
10. On Divination in Sleep feat. Dove (Giant Claw remix)