Half a million views in under two days. That’s what 轟はじめ (Todoroki Hajime) walked into her birthday with, because Deep Dive — her new original song — is exactly that good. Released on June 7th to celebrate her birthday, this track is loud, confident, and impossible to sit still to. Very on-brand for the self-declared number one badass in the universe.
Deep Dive: Sound and Production
Deep Dive is an uptempo, high-energy track produced by SILLY TEMBA and co-written with Mia Cozy, who also handled lyrics. The beat hits hard — driving rhythm, punchy synths, the kind of forward momentum that makes sense the moment you see the dance MV that comes with it. It’s not trying to be a slow-burn emotional track. It wants you moving from the first bar, and it gets exactly that. NNZN handled the mix, mastering by 柴晃宏 (Shiba Akihiro) of TEMAS, and the whole thing is polished without losing the raw energy the song’s built on.
Hajime as Choreographer — Yes, Really
What makes this release genuinely stand out is that Hajime isn’t just the vocalist here — she’s credited as choreographer too. That’s not something you see every day in a VTuber original song MV. The dance sequences, performed alongside ARAKIYUKA inc. dancers Misumi Shiori, yumena, Minami, and SARA, are tight and full of personality. It shows. You can feel that the movement came from someone who genuinely understands the song from the inside out.
The MV itself was directed by KANAURU, one of the most recognizable names in hololive MV production, and it looks fantastic — kinetic, full of colour, with a visual energy that keeps pace with the music. Thumbnail and logo by KEHAI.
Why Deep Dive Matters for Todoroki Hajime
轟はじめ (Todoroki Hajime) is part of ReGLOSS, the first generation of hololive DEV_IS — a branch of hololive production built specifically around music and performance. From the start, Hajime has leaned into the physical side of things more than most: dancing, energy, the kind of stage presence that fills a room. Deep Dive is the clearest statement yet of what that looks like as a fully realized package.
She’s restless, she’s physical, she calls herself the universe’s resident badass — and Deep Dive makes a very convincing case that the title fits. This is one of the best birthday originals she’s dropped, and it’s the kind of track that’s going to stay in rotation long after the birthday celebrations wind down.
Track Credits
- Title: Deep Dive
- Vocals / Choreography: 轟はじめ (Todoroki Hajime)
- Lyrics: Mia Cozy
- Composition: SILLY TEMBA, Mia Cozy
- Arrangement: SILLY TEMBA
- Mix: NNZN
- Mastering: 柴晃宏 (Shiba Akihiro) / TEMAS
- MV Director: KANAURU
- Dancers: ARAKIYUKA inc. (Misumi Shiori, yumena, Minami, SARA)
- Thumbnail & Logo: KEHAI
- Label: hololive DEV_IS / Cover Corp
- Released: June 7, 2026
▶ Watch: 轟はじめ (Todoroki Hajime) — Deep Dive (Official MV) on YouTube
