|Fantasy Hotel||Night Keepers||3||6||76||4:04|
|Night Festival||Night Keepers||5||8||104||3:03|
|Steven Bites Time||Night Keepers||3||6||111||2:29|
|The Cure of Sleep||Night Keepers||2||6||73||2:51|
|The Secret of Nightland||Night Keepers||5||8||130||2:48|
|The Spy's Name||Night Keepers||2||5||132||2:54|
|Times Difference War||Yuk-Cheung Chun, Marc Lin||6||9||138-190||2:23|
- At the price of $3.99, this is the cheapest IAP chapter in Cytus, due to having less than 10 songs.
- This chapter mainly introduces the band Night Keepers and Marc Lin, whom made arrangements for Rain of Fire in Chapter S, and Hot Air Balloon under Ice Bird in Chapter 2.
- This is the only chapter in Cytus to have less than 10 songs.
- This is the only chapter in Cytus in which all the songs have vocals.
- The story of this chapter can be found at this link.
- All artworks in this chapter are done by Steven Tung.
- All charts in this chapter are done by LR. This is the only one chapter in the game which contains noticable off-synced parts in all charts.