Okay, so let’s talk about what’s actually happening here. 犬山たまき (Inuyama Tamaki) has posted a cover of III — the beloved 2024 hololive original by 宝鐘マリン (Houshou Marine) and こぼ・かなえる (Kobo Kanaeru) — sung not by Tamaki herself, but by her VoiSona AI voice library character 玉姫 (Tamaki), paired with fellow VoiSona library 雨衣 (Ui), whose voice is based on illustrator and VTuber しぐれうい (Shigure Ui). If your brain is spinning a little, that’s correct. This is a very fun release.
III: The Original and Why It Still Hits
III is a high-energy, playful collab track that leaned fully into the chaotic chemistry between 宝鐘マリン (Houshou Marine) of hololive JP and こぼ・かなえる (Kobo Kanaeru) of hololive ID. It came out in May 2024 and has been a fan favourite ever since — the kind of song where two very different personalities just click. The lyrics are cheeky, the production bouncy, and the back-and-forth between the two vocalists is most of the fun. Which makes it a very interesting choice for a VoiSona cover, because the same duo dynamic is exactly what 玉姫 (Tamaki) and 雨衣 (Ui) bring to it.
The VoiSona Angle — and Why It Works
Here’s what makes this genuinely interesting beyond the novelty: 犬山たまき (Inuyama Tamaki) and しぐれうい (Shigure Ui) are close friends in real life. Their VoiSona AI characters — 玉姫 (Tamaki) and 雨衣 (Ui) — are essentially alternate-universe versions of themselves. 玉姫 (Tamaki) was conceived as “what if Inuyama Tamaki had been born female and lived a life singing?” — a different world, a different voice. 雨衣 (Ui) similarly draws from Shigure Ui’s vocal identity.
So what you have is: two AI voice characters based on two real VTubers who are genuine friends, covering a song by another pair of VTubers who have their own beloved cross-branch friendship energy. The parallel is almost too perfect. And honestly, it really works. The vocal arrangement by タカオカミズキ (Takaoka Mizuki) handles the balance between the two AI voices well — they don’t sound identical, and the contrast between 玉姫 (Tamaki) and 雨衣 (Ui) carries the same playful push-and-pull that made the original Marine x Kobo dynamic so fun to listen to.
Production and the VoiSona Sound
Mix by 丸岡詩織 (Maruoka Shiori) — a name that’s appeared on several hololive-adjacent productions — keeps things clean and lively. The MV was handled by ぽめた (Pometa) and マスクザスノハラ (Mask Za Sunohara), with stage design for the virtual space from 高級洋室 / 夜明けの星空 Ai｜タマと月 and 広場 ケミリア (Kemilia), and effects from そぼろ (Soboro), 針金P (Harigane-P), and おたもん (Otamon). That’s a substantial production for what is, at its heart, a VoiSona cover — which tells you how seriously Tamaki takes her AI library projects.
This dropped today, June 11th, and it’s already at nearly 850 views with a like ratio that suggests the people who’ve found it are very much here for it. It’s a niche release in the best way — deeply fun if you know the context, and still genuinely enjoyable if you don’t.
Track Credits
- Title: III
- Vocals (AI): 玉姫 (Tamaki) × 雨衣 (Ui)
- Voice Library — 玉姫: VoiSona (CV: 犬山たまき / Inuyama Tamaki)
- Voice Library — 雨衣: VoiSona (CV: しぐれうい / Shigure Ui)
- Original Song: 宝鐘マリン (Houshou Marine) & こぼ・かなえる (Kobo Kanaeru) — III (2024, hololive)
- Vocal Arrangement: タカオカミズキ (Takaoka Mizuki)
- Mix Engineer: 丸岡詩織 (Maruoka Shiori)
- MV: ぽめた (Pometa), マスクザスノハラ (Mask Za Sunohara)
- Camera: マスクザスノハラ (Mask Za Sunohara)
- Effects: そぼろ (Soboro), 針金P (Harigane-P), おたもん (Otamon)
- Label / Channel: のりプロ (NoriPro) / Tamaki Ch. 犬山たまき
- Released: June 11, 2026
▶ Watch: 玉姫 × 雨衣 (VoiSona) — III (宝鐘マリン & こぼ・かなえる Cover) on YouTube
