- 토끼와 거북이 (The Tortoise and the Hare)
- Back Door
- B Me
- 아니 (Any)
- 미친 놈 (Ex)
- We Go
- My Universe
- 神메뉴 (God's Menu)
- 비행기 (Airplane)
- 일상 (Another Day)
- 청사진 (Blueprint)
- 타 (Ta)
The songs that were already available as digital singles before the release of GO生 (Gone Days, On Track, Top, Slump) are not on IN生.
Because the song Go Live, the intro of GO生 is a shortened version of The Tortoise and the Hare, it was replaced by the full version.
The three unit songs – We Go, Wow, and My Universe – were first revealed and performed at Unlock : District 9 in Seoul, on November 23 2019.
According to 3racha, Back Door was made a day after God's Menu was.
Similarly to GO生, this album was announced through a concept trailer.
August 24 – IN生 Trailer
August 30 – UNVEIL : TRACK "아니 (Any)"
September 2 – UNVEIL : TRACK "We Go", "Wow", "My Universe"
September 4 – UNVEIL : TRACK "미친 놈 (Ex)"
September 6 – UNVEIL : TRACK "B Me"
September 7 – Back Door Opening Video
September 8 – Mashup Video
September 9 – MV Teaser
September 10 – INTRO "IN生"
September 11 – INTRO "IN生" : the reason
September 13 – SKZ's Room Limited Ver.
Although it seemed very much like B Me would receive an MV, since its teaser is storyline heavy and connected to On Track, it never did.
IVI. Music show wins
Show Champion (September 23)
M Countdown (September 24)
V. Official videos
미친 놈 (Ex)
토끼와 거북이 (The Tortoise and the Hare)
Note: see the entry GO生 for the rest of the songs.