

Spiral stair
かさなる時
Two primes
二つの心
Side by side
Not touching
触れないまま
∞ breathes between
間に息づく
Step by step
一段ごとの未来
Hidden proof
記憶の証明
Zero meets eternity
ゼロと無限
Slips away
消えては戻る
And we spiral
Spiral back
近づく音
Fading call counting silent primes
沈黙の数を数え
Each beat apart
鼓動外れ
Still aligned
揃ったまま
Fall inward
深く落ち
Rise slow
ゆっくりのぼる
Möbius vow
メビウスの誓い
Loop of desire
巡る渇き
Two shadows dance
影が舞い
And we spiral
Spiral back
- Lyricist
HiiRO
- Composer
HiiRO
- Producer
HiiRO
- Other Instruments
HiiRO

Listen to Spiral stair (2025 Remaster) by HiiRO
Streaming / Download
- 1
Zero Meets Blue
HiiRO
- ⚫︎
Spiral stair (2025 Remaster)
HiiRO
- 3
Spiral stair II
HiiRO
- 4
Spiral stair III
HiiRO
"SPIRAL BACK" is a concept album composed as a trilogy that explores the threshold between zero and infinity.
In the first chapter, "Spiral Stair", two hearts stand side by side without touching, ascending the steps toward the future.
The second chapter, "Spiral Stair II", portrays two beings who continue to remain close, even within distortions of afterimages, warps, and glitches.
The final chapter, "Spiral Stair III", unfolds as the very stairway disappears, and consciousness expands into the cosmos while dissolving into molecules and particles. Dark matter, quantum foam, neutrinos, and black holes-images drawn from the frontiers of modern astrophysics-resonate with life and memory, culminating in a chaotic and explosive finale.
As its title suggests, "SPIRAL BACK" is a story of beginnings and endings endlessly intertwined.
Climbing the stair, tracing the spiral, and ultimately dissolving into the universe itself-this album invites listeners to experience that journey through sound.
Artist Profile
HiiRO
Contemporary Artist / AI Music Creator / Sonic Artist / HiiRO is a contemporary artist exploring the intersection of sound, language, and visual expression. Working in collaboration with AI, HiiRO creates music that moves between two lyrical worlds: fully English compositions and hybrid songs where Japanese and English intertwine. The sound blends electro, ambient, and alternative textures, layering delicate synth waves, breathing rhythms, and particle-like noise to evoke emotion, memory, and a cosmic perspective. Since 2025, HiiRO has been releasing works on YouTube and distributing singles and albums through TuneCore Japan. The track 108 reached No.4 on the Apple Music Japan Alternative Music Video Chart, and in 2026 the song Im alive reached No.1 on the Apple Music Japan Electronic Music Video Chart. Through music, poetry, and digital art, HiiRO seeks to create works that awaken new resonance and light within the listener.
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