Gradation Collection

 is the first album released by Kobayashi Aika.

CD

 * 1) NO LIFE CODE
 * 2) Heartache soldier
 * 3) Secret Feeling
 * 4) Sora wa Dareka no Mono ja Nai (空は誰かのものじゃない)
 * 5) Tatatambourine Rhythm (たたたんばりんりずむ)
 * 6) Easy Fizzy
 * 7) Tough Heart
 * 8) Please! Please! Please!
 * 9) Border Rain
 * 10) AMBITIOUS GOAL
 * 11) Moonlight Balcony
 * 12) Night Camp
 * 13) Can you sing along?

Limited Pressing Blu-ray/Limited DVD

 * 1) Sora wa Dareka no Mono ja Nai (空は誰かのものじゃない) -Music Video-
 * 2) AMBITIOUS GOAL -Music Video-
 * 3) Tough Heart -Music Video-
 * 4) NO LIFE CODE -Music Video-
 * 5) Kobayashi Aika LIVE 2020 "NO LIFE CODE ON LINE MODE" -Live-