VTuber Sakumaru Mitama released a beta version of her hand-camera video creation tool, “Super Virtual Camera Hand (Virtual Hand Retargeter),” on BOOTH on August 16th. It is free of charge.
This tool is a post-processing software for Windows PCs that overlays VRM avatar hands onto live-action hand videos shot with an iPhone or other device. Once you load a video, the avatar hands will be superimposed onto the real person’s hands. This allows you to create videos where VTubers appear to be touching objects or moving their fingers in the real world.
In addition to the free version, a support version (¥500) is also available. The support version includes “Realtime Edition,” which features experimental functions requiring high PC performance.
This version is a beta version. Operation in all environments and detection accuracy are not guaranteed. The created video can be freely used by individuals, corporations, and for commercial purposes. However, redistribution of the tool itself or the included data is prohibited.
On October 30, 2025, Mitama Sakumaru posted the video that served as the basis for this tool to X. The post was a video showcasing a loop combo in Masters Duel using handcam footage. It garnered 806,000 views. The tool released this time is a smartphone-compatible version of this video production technique.
Check it out! I’ve finished making a tool that lets you record hand movements for Vtubers using your iPhone, so I’m releasing it! It’s packed with features like VRM loading! I hesitated, but it’s “free”!
If you think it’s amazing, please follow and share it so I can keep going!
As an independent Vtuber who likes to do bold things, I’ll continue to work hard to manifest reality, so please support me if you like! pic.twitter.com/79GxrZdfxk— Mitama Sakumaru 🤹Vtuber (@MitamaSakumaru) August 16, 2026
In January 2026, Sakumaru Mitama also released a tool that allows users to retrofit VTuber faces onto pre-recorded videos. She has also created videos of juggling with real-life performers and videos of her riding real horses and attempting Yabusame (mounted archery) as a 3D model. She continuously pursues expressions that fuse reality and virtual reality.
Ultra Virtual Hand Camera – Overview
| Tool name | Ultra-virtual hand camera (Virtual Hand Retargeter) |
| price | Free version: ¥0 / Supporter version: ¥500 |
| Supported Environments | Windows PC、iPhone |
| Release date | May 5, 2026 |
| Distribution URL | https://mitamasakumaru.booth.pm/items/8309181 |
This article is an English translation of an original Japanese article, translated by the Mogura VR editorial team.
Reference
https://x.com/MitamaSakumaru/status/2088854365574713595
https://mitamasakumaru.booth.pm/items/8309181
