Day1

Day1 is Liella!'s third song for the single that was released on October 20, 2021.

The song is written by KEN THE 390, composed by Menma and KEN THE 390, and arranged by Masaki Iehara.

CD

 * 1) Nonfiction!! (ノンフィクション!!)
 * 2) Starlight Prologue
 * 3) Day1
 * 4) Nonfiction!! (Off Vocal)
 * 5) Starlight Prologue (Off Vocal)
 * 6) Day1 (Off Vocal)

Audio

 * Does not work on iPad, or any medium that does not support the .ogg audio format.

Live Performances

 * Liella! First LoveLive! Tour ~Starlines~
 * Beisia Culture Hall (Large Hall) in Gunma: October 30 & October 31, 2021
 * Kurashiki City Auditorium in Okayama: November 6 & 7, 2021
 * Manamiru Iwamizawa City Hall (Large Hall) in Hokkaido: November 14 & 15, 2021
 * Orix Theater in Osaka: November 20 & 21, 2021
 * LINE CUBE SHIBUYA in Tokyo: November 25 & 26, 2021
 * Kitakyushu Soleil Hall in Fukuoka: December 4 & 5, 2021
 * NTK Hall (Forest Hall) in Aichi: December 11 & 12, 2021
 * Hall of the Forest 21 in Chiba: December 17 & 18, 2021
 * Phoenix Plaza (Large Hall) in Fukui: December 25 & 26, 2021
 * Sendai Sun Plaza Hall in Miyagi: January 8 & 9, 2022
 * Tokyo Garden Theatre in Tokyo: January 15 & 16, 2022
 * December 31, 2021: LoveLive! Series Presents COUNTDOWN LoveLive! 2021→2022 〜LIVE with a smile!〜 at PIA ARENA MM
 * PIA ARENA MM: March 12 & 13, 2022
 * Nippon Gaishi Hall: April 2 & 3, 2022
 * Osaka-Jo Hall: June 4 & 5, 2022
 * June 26, 2022: Liella! LIVE & FAN MEETING TOUR ~Welcome to Yuigaoka!!~ at NTK Hall in Nagoya
 * Liella! 3rd LoveLive! Tour ~WE WILL!!~
 * December 3 & 4, 2022: Xebio Arena Sendai in Miyagi, Sendai (9-Member version)
 * December 10, 2023: Ijigen Fes IDOLM@STER★♥Love Live! Uta Gassen at Tokyo Dome

Trivia

 * In one of the live performances for this song during Liella! 2nd LoveLive! ~What a Wonderful Dream!!~, Keke's seiyuu forgot to sing her solo line "sono hi ga hajimari" during the first chorus. That happened because Ren's seiyuu sang the part "Kono ashi de yuuki o dashite" from the second chorus, when she had to sing "Itsudatte omoi tattara" before Liyuu. After she sang the wrong part, Liyuu was confused and didn't know what to sing.