Baekho introduced his solo song and said, "'I Was Happy Until Now' is a solo track gifted by Seventeen's Woozi. I asked him to write up a song and it was as if he went inside my heart; the lyrics turned out exactly how I wanted it to be. So I immediately recorded it without making any changes."
Following this, Ren also talked about his solo track "Paradise". "I felt inspired to write the song after seeing a painting. I then imagined myself bringing our entire fanbase to that spot. Although I struggled a bit since it was my first time composing, I hope many would listen to the song."