Hoi Daiyu (海黛玉) was on born April 13, 1993. Hoi is the current boss of Happy Jikan and a member of the duo group Team SayuHoi.

Hoi joined Happy Jikan alongside seven other girls,as a sixth generation member on September 19,2008.



In 2007, Hoi participated in the Happy Jikan ~Get Ready!Go!~ Sixth Generation Auditions alongside 70 Chinese girls and 40 Taiwanese girls.

September 19, it was revealed that Hoi Daiyu was one of the audition winners. She was first introduced at the Happy Jikan ~Hey Six!~ Concert Tour Fall 2008 alongside the other seven winners.

December 14, she was featured in her first single within the group 'Atarashii Mono To Furui Mono'.


Hoi joined the group Team SayuHoi, alongside Michishige Sayumi from Morning Musume.

Hoi had her first solo event.


After the graduation of Yin Lu, Hoi became boss of Happy Jikan.


It was revealed that Hoi would be celebrating her second year being leader of Happy Jikan during their 2013 spring tour.

January 21, Hoi appeared on the radio show "Baka to Otaku" alongside Morning Musume member Tanaka Reina. Both girls appeared to promote their group's latest singles. When "Baka" Hisashi asked why they joined their groups, Hoi said:

"I joined because at the time, my family was really poor. I was a big fan of Happy Jikan and when the sixth generation auditions came out, I decided to audition. Happy Jikan was one of my highest achievements and I will cherish that forever."

She was then asked if Happy Jikan was a backup job and she replied:

"No...The only thing I wanted to do ever since I was eight is be a member of the Hello! Project."

"Otaku" Masa said that Hoi is a very sweet and responsible girl, for helping her family out like that and using her dream too.

After the discussion, the single was promoted and Hisashi said the best of luck to both Tanaka Reina and Hoi.


January 1,it was announced that Hoi will be participating in the Idol "Te Okuru" Donation event, alongside Michishige Sayumi, Sato Masaki, Wu Jiao, Shimizu Saki and Takagi Sayuki. It took place January 9,2014, at Zepp Nagoya.

January 5,it was announced that Hoi will be the narrator of the Chinese stage play "Zhuàng Nán Shuyuàn". Hoi will be going to China March 3,2014, and the stage play will start March 8,2014. According to Hoi, she is taking all the members of Happy Jikan along with her for support and to visit friends and family.


  • Name: Hoi Daiyu (海黛玉)
  • Nicknames: Ahoy-sama (アホイ様), HoiHoi (海海), Dai-chan (だいちゃん), Boss (ボス), Number 1
  • Birthday: April 13, 1993 (1993-04-13) (age 24)
  • Birthplace: Chengdu, China
  • Bloodtype: O
  • Height: 167 cm
  • Hello!Project Status
    • ​2008-09-19 Member
    • 2008-09-19 Happy Jikan Member
    • 2008-09-20 Member
  • Happy Jikan Color:
    • Green (2008-2014)
    • Sky Blue (2014-Present)
  • Specialty: Dancing
  • Looks Up To: Yasuda Kei, Chen Jingfei
  • Hello!Project Groups


Singles Participated In

Happy Jikan

  1. Atarashii Mono To Furui Mono (Debut)
  2. Cheers
  3. Bravo!Chansu O Tsukamu
  4. Pure form!!
  5. Anata wa Watashida Future!
  6. Don't Give Up Yet!/Keep Going!
  7. Lucky LOVE
  8. Hold On!
  9. Sekushina Babe
  10. School Girl Love
  11. Renai Spirit!
  13. Tantei Shojo
  14. Ogoe De!!
  15. Cinderella Naite
  16. Dot Dot Dot/With or Without Watashi no Koibito
  17. Gǎnxiè wǒ de qiúmí
  18. Happy Jikan Qīnfàn/Midnight Fox
  19. Ai tte Mubou / LOST IN PARADISE / Chuántǒng de Dēng
  20. Sodanno Mattadanaka / Kòngzhì nǐ de mìngyùn


  1. Victory!


  1. Tomodachi,Oh,Tomodachi (debut)
  2. Wakuteka Mirai Chance

Team SayuHoi

  1. Watashi ga Suki na Otoko 
  2. Ah,Beautiful Days
  3. Watashi no Tamago 
  4. Watashi ga Nozomu Jinsei 
  5. Kawaii, Kawaii, Kawaii!
  6. Hello, New Age
  7. Nani ka Atta 


  • Hoi and Su Meili are the youngest Happy Jikan members to become boss, being only 17 years old when they became boss.
  • Hoi is currently the tallest Happy Jikan Member.
  • She is close friends with Wang Dao Ming & Michishige Sayumi
  • When Hoi first joined,she couldn't pronounce "Michishige" right,so she ended up just calling Michishige "Micchige". According to Michishige,it annoyed her.
  • Huang Ning was Hoi's mentor,and she used to be very strict towards Hoi.
  • Hoi used to be the captain of a soccer team.But in 2010, she left the team due to idol purposes.
  • Hoi is known for being caring and sporty.
  • She was voted the #1 Boss that Happy Jikan has ever had.
  • Hoi is the only current member of Happy Jikan to be an adult.
  • On the last day of the 2013 spring tour, fans started to call her "Number 1" due to the fact that on that day, she was titled the best boss Happy Jikan ever had by Tsunku himself.
  • In 2009, Hoi gave herself the nickname "Ahoy-sama", a pun on her last name.
  • Hoi states that she doesn't want to become one of those "mean and strict" leaders.
  • Out of all Hoi's kouhai, Hoi said she is the closest with Lin Ju.
  • Hoi worked at a cafe when she was 11,but it closed down shortly a year after that due to low business.
Happy Jikan
Current Members6th Gen: Hoi Daiyu (B), Wang Dao Ming (SB), Wu Jiao, Sun Fang, Zheng Mei
7th Gen: Joe Song, Hsaoi Zhe, Bui Shun
8th Gen: Peng Shan, Tang Juan, Lin Ju, Lee Mia

9th Gen: Long Haru, Rei Meifei

Former Members1st Gen: Su Meili, Chen Jingfei, Zhou Jia
2nd Gen: Huang Ning, Xie Biyu
3rd Gen: Da Meihui
4th Gen: Yue Yuanjun
5th Gen: Yin Lu, Ruu Maya
6th Gen: Zheng May Ai, Aoi Xiao
7th Gen: Zeng Yun
Singles 01, 02, 03, 04, 05, 06, 07, 08, 09, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23. 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35. 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47

MORNING JIKAN: Tomodachi Oh Tomodachi, Wakuteka Mirai Chance, Sayonara,Zàijiàn/Adventure!

Other: Busu ni Naranai Tetsugaku, Victory!

AlbumsOriginal 01, 02, 03, 04, 05, 06, 07, 08, 09, 10, 11, 12, 13, 14, 15, 16
Mini 01, 02
Best 01, 02, 03
Related Units Morning Musume, H.P ALL STARS, MORNING JIKAN, IidaChen, Hǎo yàng de!, LOVE ME, Peximoni, Hontomoni, Chuugoku no yoru, MoKanBeKiMaSu Ongaku, H.P SUPER IDOLS., Hello!Pro Kenshuusei, Hello!Project Foreigners, KA-WAII-ness, CHOU KAWAII, Aloha!, Un-crazy, HYPER HEARTS, PARTYPARTY, DYB!, Happy Jikan GG

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