Masai Mayuu

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Masai Mayuu
Kanji 正鋳真優
Kana まさい まゆう
Romaji Masai Mayuu
Nickname Mayuuchan (まゆうちゃん)
Birth Info
Birthdate March 1, 2005  
Birthplace Flag of Japan.png Saitama, Japan
Blood type B
Current Age 19 Years Old
Height 154cm
Professional Info
Agency DH
Social Networks Instagram / SHOWROOM / Twitter
Idol Career Info
Group AKB48
Team Kenkyuusei
Debuted May 2022 / 17th Generation
Lightstick Colors
White White

Masai Mayuu is an AKB48 Kenkyuusei.


  • Admired member: Oguri Yui, Hashimoto Haruna
  • Charm point: A mole by her mouth
  • Special Skills: Rhythmic gymnastics, flexibility. She can join her arms together and rotate them from her front side to her back.
  • Favorite food: Eel rice bowl (unaju), udon
  • Least favorite food: Shrimp with chili, yogurt, banana, pudding
  • Favorite AKB48 song: 365nichi no Kamihikouki
  • Favorite AKB48 stage song: Kanojo ni Naremasu ka?
  • Her parents chose the name "Mayuu" in hopes that she would be straightforward (真っ直ぐ) and kind (優しい).
  • She has a sister 10 years younger than her who she calls “Chiitan”. Her sister has appeared in some of her SHOWROOM streams.
  • She did rhythmic gymnastics for eleven and a half years before joining AKB48.
  • She hardly ever feels nervous.
  • She collects idol photos and photocards.
  • The 17th Generation members describe her as kind, reliable, and older sister-like, while having a playful side too. She often helps other members learn choreography.
    • Mayuu says that being kind and helpful is part of her nature; she was raised to be helfpul because she has the kanji for "kindness" (優) in her name.
    • The 17th Generation members also call her "Masaru" because of this ( can be read as "masaru", meaning "gentleness").
  • She would like to perform Heavy Rotation and 365nichi no Kamihikouki someday.




  • On April 20th, participated in AKB48's audition show OUT OF 48.
  • On May 5th, tested positive for COVID-19. This followed shortly after the infection of Hotei Moka.
  • On May 15th, made her first under appearance at Taguchi Team K Saka Agari stage.
  • On July 1st, made her first television music show appearance at THE MUSIC DAY performing Heavy Rotation.
  • On October 31st, appeared in Platinum FLASH Vol.24. This was her first gravure photo shoot appearance.


Team History

AKB48 Kenkyuusei
Joined AKB48 as a Kenkyuusei on May 4, 2022

Singles Participation

AKB48 B-Sides


Stage Units

KKS1 Revival (Tadaima Renaichuu)
7ji 12fun no Hatsukoi
Junai no Crescendo
K5 Revival (Saka Agari)
Ai no Iro (Under)
Dakishimeraretara (Under)
Himawarigumi 1 Revival (Boku no Taiyou)
Boku to Juliet to Jet Coaster (Center)
KKS10 (Soko ni Mirai wa Aru)
End Roll

Concert Units

MX Matsuri! AKB48 60th Single "Hisashiburi no Lipgloss" Announcement Commemoration Concert in Budokan 2022

Day 3

AKB48 17 Kenkyuujyo! Presents 17ki Kenkyuusei Solo LIVE 〜Ureshi Sugite ha ga Nuke sou desu!〜

MX Matsuri AKB48 62nd Single "Idol Nanka Janakattara" Release Commemoration Concert

Day 1
Day 2
Day 3

Media Appearances


Web Show

Akiyama YunaArai SaeOta YukiKudo KasumiKubo HinanoKohama Kokone
Sako YumemiSato AiriNarita KohinaHashimoto ErikoHatakeyama NozomiHirata Yuki
Hotei MokaMasai MayuuMizushima MiyuuYagi AzukiYamaguchi YuiYamazaki Sora
Tadaima Renaichuu | Idol no Yoake | Renai Kinshi Jourei | Theater no Megami | RESET | Boku no Taiyou | Pajama Drive | 16th Generation Kenkyuusei | Let's Go Kenkyuusei! | Soko ni Mirai wa Aru