Observed arrival · 2026-09-04
Yobun Checker: A Contract Gut-Check for Aspiring Performers
A free Japanese service helps idols, actors, voice actors, models, streamers, and other creators examine agency contracts before signing.
Field notes
The service separates contract review into public-information scanning, financial arithmetic, a 17-question checklist, and an activity worksheet rather than presenting one definitive verdict. Its calculator is aimed at concrete figures such as agency revenue share, activity costs, take-home income, and effective hourly pay. The site says browser-based inputs remain local, while agency names, URLs, or pasted contract-related text used by the AI scan are sent to its server and OpenAI.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
One card from the complete issue