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Main article: Okai Chisato
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The following page contains information about the family members of ℃-ute member Okai Chisato.

Parents and Siblings[]

Okai Ken & Hitomi[]

Okai Ken and Okai Hitomi are the father and mother of ℃-ute member Okai Chisato. Okai Ken was born on December 14, 1968. Ken works as a plumber and runs a small plumbing business. Okai Hitomi was born on September 16, 1971. Ken and Hitomi have 5 children together: Chisato (b. 1994), Asuna (b. 1996), Tsubasa (b. 1998), Mion (b. 2007) and Rimu (b. 2013).

Okai Asuna[]

Okai Asuna

Okai Asuna (岡井明日菜) is the second child of Okai Ken and Hitomi. She was born on May 14, 1996 in Saitama Prefecture. In 2004, Asuna auditioned for Hello Pro Egg (now called Hello Pro Kenshuusei) and successfully passed. She officially joined Hello Pro Egg in June 2004; Asuna was 8-years-old at that time. As a trainee, she participated in various Hello! Project concerts as a backdancer, as well as performing in Hello Pro Egg concerts. She left Hello! Project on November 28, 2010. She gave birth to her first child Rito on October 6, 2016 at the age of 20, and her second child Toa on September 21, 2018 at the age of 22. 

Okai Tsubasa[]

The Okai siblings (L-R): Asuna, Chisato, & Tsubasa.

Okai Tsubasa (岡井空翼) is the third child of Okai Ken and Hitomi as well as the second youngest brother of ℃-ute's Okai Chisato. He was born on March 26, 1998.

Tsubasa's Twitter

Okai Mion[]

Okai Mion with her sister, Chisato

Okai Mion (岡井海夕音) is the younger sister of ℃-ute member Okai Chisato. She was born on April 20, 2007. She is currently an elementary school student.

Mion has said to Chisato that she wants to be in ℃-ute.[1]

Okai Rimu[]

Chisato with her brother, Okai Rimu

Okai Rimu (岡井絆夢) is the younger brother of ℃-ute member Okai Chisato. He was born on May 25, 2013.


The following are a list of pets own by the Okai family.

O02400320114099458151.jpg Name Lipstick (リップスティック) Trivia:
  • Lip passed away on December 25th, 2017.[4]
Nickname: Lip (リップ)
Gender Male
Species Dog
Breed Miniature Dachshund
O02400320114099458051.jpg Name Pine (ぱいん) Trivia:
  • Pine passed away in 2013.
Gender Male
Species Dog
Breed Miniature Dachshund
5a57cd3d 640.jpg Name Howl (ハウル) Trivia:
  • Okai purchased Howl in May 2014.
Gender Male
Species Dog
Breed Border Collie
Name Elizabeth (エリザベス) Trivia:
  • Elizabeth is one of four turtles own by Okai.
Gender ??
Species Turtle
Kamedo[verification overdue]
Name Kamedo (カメドウ) Trivia:
  • Kamedo is one of four turtles own by Okai.
Gender ??
Species Pond slider turtle
OkaiChisato-Pants-20160720.jpg Name Pants (パンツ) Trivia:
  • Okai bought Pants in July 2016.
Nickname: Pan (パン)
Gender Male
Species Dog
Breed Chihuahua
Name Bra (ぶら) Trivia:
  • Introduced on Okai's instagram as a 3 year-old (December 27th, 2017).
  • Her name was Buu (ぶー) before Okai adopted her and re-named it to Bra.
  • She used to be a pet of an acquaintance of Okai's mother before her owner passed away and Okai decided to adopted her as a companion for Pants. 
Gender Female
Species Dog

Family Tree[]