Matsukai Mao (魔使マオ)
At a glance
- Who: Matsukai Mao (魔使マオ), a Japanese VTuber who presents herself as a familiar of a demon
- Agency: NIJISANJI (ANYCOLOR Inc.)
- Debut: first stream on November 3, 2019; the seventh anniversary falls on November 3, 2026
- Birthday: May 31
- Language and content: Japanese; gaming, talk streams and singing
Who Matsukai Mao is
Matsukai Mao is a NIJISANJI VTuber. Hololist lists her as a debut member of the NIJISANJI unit Aka no Soshiki (赤の組織), together with Emma August and Luis Cammy. The NIJISANJI Wiki gives October 31, 2019 as her debut date and November 3, 2019 as her first stream. Her character calls herself a genius familiar (使い魔) of a demon. The same wiki gives her height as 142 cm, or 147 cm including her antenna-like hair, and says her fans are called Mao no Shiikugakari (マオの飼育係, “Mao’s caretakers”).
Real Sound described her in 2023 as a Kansai-dialect streamer known for quick comic retorts (tsukkomi).
Channel and style
Her streams combine game play, free talk and singing. According to the NIJISANJI Wiki, she won a Splatoon cup in 2020, took part in the ARK wars and in an Asian rookie tournament for Rainbow Six Siege, and placed second in a Yu-Gi-Oh! Master Duel festival in 2022. She released her first cover in 2020, and her first solo cover in 2021 passed one million views. Her 3D debut stream was held in September 2021.
Her most recent verified activity is the final tournament stream of the NIJISANJI Yu-Gi-Oh! festival 2026 (#にじ遊戯王祭2026) on her channel, which YouTube lists as streamed live on September 22, 2026. User Local shows about 315,000 YouTube subscribers.
How to follow and what to expect
Streams are held on YouTube, with announcements on her X account. Viewers can expect a mix of game streams, including card games and competitive titles, and conversation-based content, with occasional participation in NIJISANJI events.
Official links
- YouTube: youtube.com/@MatsukaiMao
- X: @matsukai_mao
- NIJISANJI official site: nijisanji.jp
FAQ
When is Matsukai Mao’s birthday? May 31, according to Hololist and the NIJISANJI Wiki.
Which agency does she belong to? NIJISANJI, operated by ANYCOLOR Inc.
What language does she stream in? Japanese.
Where can I watch her? On YouTube at youtube.com/@MatsukaiMao. Updates are posted on X at @matsukai_mao.
Related
Sources
- Hololist: Matsukai Mao
- NIJISANJI Wiki: 魔使マオ
- User Local: 魔使マオ
- YouTube: #にじ遊戯王祭2026 final tournament
- Real Sound: 魔使マオ feature
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Profile
Sources
Reviewed by WVR Inoue on October 29, 2026. See our editorial standards.
Thumbnail: 【#にじ遊戯王祭2026】決勝トーナメント【魔使マオ/にじさんじ】 by 魔使マオ -matsukai mao- on YouTube. Shown via YouTube; all rights belong to their owners.
