Some artists bury their old recordings. Sukitou Luccica (透々ルチカ) uploads hers and challenges you to hear the difference. Her new cover of SOS, originally by Mayoi Fuyuko (迷フレンズ), is a joint release with Ando (あん豆) under the duo name #Ruchimame (#ルチ豆) — and per Luccica herself, the vocal track was recorded a full two years ago, held in the vault until now.
‘SOS’ Gets The Two-Voice Treatment From Ruchimame
The pairing is the draw here. Luccica and Ando split SOS as a proper two-hander — the duo credit runs across vocals and illustration, so this is about as self-made as a cover release gets. Ando handled the movie work alongside the illustration, while mix and mastering came courtesy of Kisaragi Yua (如月結愛), giving the two-year-old recording a clean, modern finish that keeps it from sounding like the archive-dive it technically is.
A Two-Year Time Capsule — On Purpose
The framing is what makes this release fun. Luccica isn’t presenting this as her current best — she’s explicitly telling listeners to hold it up against her upcoming new cover and “feel the growth.” That’s a confident bit of showmanship: she’s betting her improvement is audible, and inviting you to be the judge. For a cover of SOS — a song that thrives on urgency and a slightly desperate charm — it’s a neat framing. You get to hear both where Luccica started and, very soon, where she’s landed.
Why The Ruchimame Duo Works For This Song
Duet covers live or die on whether the two voices actually sound like they’re in the same room, and the #Ruchimame pairing has the casual, friends-messing-around energy that suits SOS‘ playful panic. Neither vocal is competing for the spotlight — the handoffs feel natural, which is exactly what you want from a song built on back-and-forth momentum.
What This Means For Sukitou Luccica Going Forward
This drop is clearly the opening move of a one-two punch, with Luccica confirming a second, more recent cover is coming right behind it. If you’re new to her — she’s part of NoriPro (のりプロ) — this two-parter is a genuinely clever entry point: one song, two points in time, and an open invitation to watch the trajectory. Hit play, then keep the follow-up on your radar.
Track Credits
- Title: SOS
- Vocals: Sukitou Luccica (透々ルチカ) & Ando (あん豆) — duo #Ruchimame (#ルチ豆)
- Original: SOS by Mayoi Fuyuko
- Mix & Mastering: Kisaragi Yua (如月結愛)
- Movie: Yuzuriha Nodoka (楪のどか)
- Illustration: Sukitou Luccica & Ando (あん豆)
- Label: NoriPro (のりプロ)
- Released: October 28, 2026
▶ Watch: Sukitou Luccica & Ando — SOS (Cover) on YouTube
