Rio Mason Busujima
Anime/game character · Hypnosis Mic · Birthday: June 21
Character
This page covers a character (Anime/game character). The birthday shown is part of the official character profile, not a real person’s date of birth.
- Birthday (official profile)
- June 21
- Zodiac sign
- ♋ Cancer (based on the character’s official birthday, not a real person’s)
- Type
- Anime/game character
- Work / Affiliation
- Hypnosis Mic
- Group
- Hypnosis Mic
- Official links
- 毒島メイソン理鶯 官方角色頁
Want to hold a support event for Rio Mason Busujima?
Character birthday support is typically done through birthday cafés, custom photo booth frames, and support-goods giveaways.
Also born on June 21
- Finana Ryugu · NIJISANJI EN
- Shaw
- RYEOWOOK · SUPER JUNIOR
- Koji Mukai · Snow Man
- Samuel Deguara · Yankey ARK
7 more share this birthday. See the full list for June 21 →
FAQ
- When is Rio Mason Busujima's birthday?
- Rio Mason Busujima's birthday is June 21, according to ヒプマイ 官方角色頁 (a single official source).
- Who is Rio Mason Busujima?
- Rio Mason Busujima is from Hypnosis Mic (Anime/game character). Birthday: June 21. This page gathers fan support info for them: birthday, official links, and support events fans have held.
Sources
This birthday comes from a single official source (checked 2026-07-23):
- ヒプマイ 官方角色頁 (Official)
See who else has a birthday on June 21 → → · View this page in Chinese → · Back to character index