Open α Door

 is a studio album released by Aimer. It.

The lead number "Resonantia" was released beforehand on digital music services on July 10.

CD

 * 1) Open α Door
 * 2) Zankyo Sanka (残響散歌 Reverberant Melody)
 * 3) Resonantia
 * 4) Deep down
 * 5) Asa ga Kuru (朝が来る Morning Comes)
 * 6) Oaiko (オアイコ)
 * 7) Gunjo-iro no Sora (群青色の空 Ultramarine Sky)
 * 8) I know U know
 * 9) escalate
 * 10) spiral dance
 * 11) Atemonaku (あてもなく Aimlessly)
 * 12) SKYLIGHT

Blu-ray or DVD [Limited Edition A & B]

 * 1) "Zankyo Sanka" Music Video
 * 2) "Resonantia" Music Video
 * 3) "Deep down" Music Video
 * 4) "Asa ga Kuru" Music Video
 * 5) "Oaiko" Music Video
 * 6) "escalate" Music Video
 * 7) "Atemonaku" Music Video

Blu-ray [Complete Edition]

 * Aimer 10th Anniversary Final "Cycle de 10 ans" on October 16, 2022 at the Osaka Jo Hall


 * 1) TWINKLE TWINKLE LITTLE STAR -prologue-
 * 2) Kanashimi wa Aurora ni (悲しみはオーロラに)
 * 3) Anata ni Deawanakereba: Kasetsutouka (あなたに出会わなければ~夏雪冬花~)
 * 4) StarRingChild
 * 5) Brave Shine
 * 6) Stars in the rain
 * Hz
 * 1) Band Instrumental -Cycle de 10 ans-
 * 2) Ref:rain
 * 3) Black Bird
 * 4) Hana no Uta (花の唄)
 * 5) Oaiko (オアイコ)
 * 6) Koiwazurai (コイワズライ)
 * 7) Ivy Ivy Ivy
 * 8) Zankyo Sanka (残響散歌)
 * 9) Run Riot
 * 10) ONE
 * 11) Chouchou Musubi (蝶々結び)
 * 12) Polaris (ポラリス)
 * 13) Rokutousei no Yoru (六等星の夜)