Is your Su-charge at 100%? Because 水宮枢 (Mizumiya Su) just dropped her first ever original song, and it is exactly what you’d expect from FLOW GLOW’s publicity manager — bright, bouncy, completely chaotic in the best way, and impossible not to smile at. うみゃうにゃはっぴーらいふ (Umya Unya Happy Life) is here, 72,000 views on day one, and it absolutely delivers.
うみゃうにゃはっぴーらいふ: The Sound and Feel
Written, composed, and arranged by サトダユーリ (Satoda Yuuri) of SUPA LOVE, the track is an unapologetically cute, high-energy J-pop song that leans fully into Su’s personality. It’s got that cheerful, slightly frantic energy — the kind of song where the title itself (*うみゃうにゃ* is essentially cute gibberish, like the sound of happy mumbling) tells you everything you need to know about the vibe before you’ve even pressed play. The production is colourful and bouncy, with a hook that lodges itself in your brain immediately. This is not a song that’s trying to be subtle. It is trying to be fun, and it absolutely succeeds.
Recording by 岡田妃由 (Okada Hiyu) at Sound City, mix by 丸岡詩織 (Maruoka Shiori) — a recurring name across hololive productions who consistently delivers clean, polished results. The vocal sits forward and warm, which is exactly right for a song this personality-driven.
Su Choreographed It Herself — Again, Very On-Brand
Like 轟はじめ (Todoroki Hajime)‘s *Deep Dive* earlier this month, 水宮枢 (Mizumiya Su) is credited as choreographer on her own debut original. She also co-designed the costume with MV director 紺色。(Kon7iro). For someone who only started using a computer when she joined hololive — having previously relied entirely on her phone, she’s clearly figured out how to put together a full production very quickly. The MV is charming and lively, with animation from YOOKI and まりー (Marie), illustration from a team of eight artists, and video direction from 紺色。 and てうづ渚 (Teudu Nagisa). It’s a genuinely impressive debut package.
Why This First Original Matters for Mizumiya Su
水宮枢 (Mizumiya Su) is part of FLOW GLOW, the second unit under **hololive DEV_IS** alongside **ReGLOSS**, which debuted in November 2024. FLOW GLOW is built around music and performance as core to each member’s identity, and a first solo original is a real milestone in that context. Su’s character — the publicity manager of the group, determined to gain love and praise, posting constantly on social media with her mouth full of snacks — translates perfectly into a song called *うみゃうにゃはっぴーらいふ*. It’s on-brand in the deepest possible way.
The song is on streaming now. If you’ve been following FLOW GLOW since their debut, this is the Su solo moment you’ve been waiting for. And if you’re new — welcome. The Su-charge is very much at 100% today.
Track Credits
- Title: うみゃうにゃはっぴーらいふ (Umya Unya Happy Life)
- Vocals / Choreography / Costume Design: 水宮枢 (Mizumiya Su)
- Lyrics / Music / Arrangement: サトダユーリ (Satoda Yuuri) / SUPA LOVE
- Recording: 岡田妃由 (Okada Hiyu) / Sound City
- Mix: 丸岡詩織 (Maruoka Shiori)
- MV Director / Costume Design / Video: 紺色。(Kon7iro)
- Director / Video: てうづ渚 (Teudu Nagisa)
- Animation: YOOKI, まりー (Marie)
- Illustration: おのこ, カロクチトセ (Chitosei Caroku), 神原たまき (Kamihara Tamaki), 紺色。, 鈴木 (Suzuki), 檀上大空 (Danjou Ozora), まりー (Marie), MIKIWO, ゆっけ (Yukke)
- Logo / Design: コマチャン！(Komachan!)
- Production: スタジオメイビー (Studio Maybe)
- Label: hololive DEV_IS / Cover Corp
- Released: June 16, 2026
▶ Watch: 水宮枢 (Mizumiya Su) — うみゃうにゃはっぴーらいふ (Official MV) on YouTube
