Chisato Okai (21-06-1994, Tokorozawa, Saitama Prefecture, Japan)

岡井千聖 (Okai Chisato) is a former Japanese pop singer. She is a former member of the group ℃-ute under Hello! Project. She is also a former member of Mellowquad and Triplet and leader of Team Okai. On May 1, 2020, she announced she had retired from the entertainment industry.

• Petit Best 20 2020
  2020
• Hello! Project 2019 Winter ~NEW...
  2019
• Hello! Project 2019 Winter ~YOU &...
  2019
• Hello! Project 2018 Summer ~OG...
  2018
• Hello! Project 2018 Summer ~OG...
  2018
• Hello! Project 2017 Hina Fes...
  2017
• Hello! Project 2017 Hina Fes...
  2017
• Hello! Project 2017 Hina Fes...
  2017
• Hello! Project 2017 Hina Fes...
  2017
• Petit Best 18
  2017
• ℃-ute 2017 Summer Last Concert...
  2017
• Hello! Project 2016 COUNTDOWN...
  2016
• Hello! Project 2016 Hina Fes...
  2016
• Hello! Project 2016 Summer...
  2016
• Hello! Project 2016 Summer...
  2016
• Hello! Project 2016 Winter...
  2016
• Hello! Project DVD Magazine Vol.48
  2016
• Hello! Project DVD Magazine Vol.49
  2016
• Hello! Project DVD Magazine Vol.50
  2016
• Hello! Project DVD Magazine Vol.51
  2016
• Petit Best 17
  2016
• Hello! Project 2015 COUNTDOWN...
  2015
• Hello! Project 2015 Hina Fes...
  2015
• Hello! Project 2015 Hina Fes...
  2015
• Hello! Project 2015 Hina Fes...
  2015
• Hello! Project 2015 Summer...
  2015
• Hello! Project 2015 Summer...
  2015
• Hello! Project 2015 Winter ~DANCE...
  2015
• Hello! Project 2015 Winter ~HAPPY...
  2015
• Hello! Project DVD Magazine Vol.44
  2015
• Hello! Project DVD Magazine Vol.45
  2015
• Hello! Project DVD Magazine Vol.46
  2015
• Hello! Project DVD Magazine Vol.47
  2015
• Petit Best 16
  2015
• ℃-ute 2015 Autumn Cutie Circuit...
  2015
• ℃-ute 2015 Autumn ~℃an't...
  2015
• ℃-ute 2015 Spring 9→10 Shuunen...
  2015
• Hello! Project 2014 COUNTDOWN...
  2014
• Hello! Project 2014 Hina Fes ~Full...
  2014
• Hello! Project 2014 Summer...
  2014
• Hello! Project 2014 Summer...
  2014
• Hello! Project 2014 Winter ~DE-HA...
  2014
• Hello! Project 2014 Winter ~GOiSU...
  2014
• Hello! Project DVD Magazine Vol.40
  2014
• Hello! Project DVD Magazine Vol.41
  2014
• Hello! Project DVD Magazine Vol.42
  2014
• Hello! Project DVD Magazine Vol.43
  2014
• Petit Best 15
  2014
• S/mileage 2014 Summer LIVE FULL...
  2014
• ℃-ute 2014 Autumn (910) no Hi...
  2014
• ℃-ute 2014 Autumn ~Monster~
  2014
• ℃-ute 2014 Spring ~℃-ute no...
  2014
• ℃-ute Cutie Circuit ~First Trip...
  2014
• Hello! Channel Vol.12 ~Tanaka...
  2013
• Hello! Project 2013 COUNTDOWN...
  2013
• Hello! Project 2013 Spring Haru no...
  2013
• Hello! Project 2013 Spring Haru no...
  2013
• Hello! Project 2013 Spring Yaon...
  2013
• Hello! Project 2013 Summer COOL...
  2013
• Hello! Project 2013 Summer COOL...
  2013
• Hello! Project 2013 Winter Tanjou...
  2013
• Hello! Project 2013 Winter Tanjou...
  2013
• Hello! Project DVD Magazine Vol.34
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• Hello! Project DVD Magazine Vol.35
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• Hello! Project DVD Magazine Vol.36
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• Hello! Project DVD Magazine Vol.37
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• Hello! Project DVD Magazine Vol.38
  2013
• Hello! Project DVD Magazine Vol.39
  2013
• Petit Best 14
  2013
• ℃-ute 2012~2013 Winter...
  2013
• ℃-ute 2013 Autumn"Queen of J-POP...
  2013
• ℃-ute 2013 Spring ~Treasure Box~
  2013
• Hello! Channel Vol.10 ~Tabi wo...
  2012
• Hello! Channel Vol.11 ~2013nen...
  2012
• Hello! Channel Vol.8
  2012
• Hello! Channel Vol.9
  2012
• Hello! Project 2012 Summer Tanjou...
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• Hello! Project 2012 Summer Tanjou...
  2012
• Hello! Project 2012 Winter...
  2012
• Hello! Project 2012 Winter...
  2012
• Hello! Project DVD Magazine Vol.28
  2012
• Hello! Project DVD Magazine Vol.30
  2012
• Hello! Project DVD Magazine Vol.31
  2012
• Hello! Project DVD Magazine Vol.32
  2012
• Hello! Project DVD Magazine Vol.33
  2012
• Petit Best 13
  2012
• ℃-ute 2012 Cutie Circuit ~9gatsu...
  2012
• ℃-ute 2012 Spring-Summer...
  2012
• Hello Pro! TIME Vol.5
  2011
• Hello! Channel Vol.4
  2011
• Hello! Channel Vol.5
  2011
• Hello! Channel Vol.6
  2011
• Hello! Channel Vol.7
  2011
• Hello! Project 2011 Autumn Hello!...
  2011
• Hello! Project 2011 Summer ~Nippon...
  2011
• Hello! Project 2011 Summer ~Nippon...
  2011
• Hello! Project 2011 Winter ~Kangei...
  2011
• Hello! Project 2011 Winter ~Kangei...
  2011
• Hello! Project DVD Magazine Vol.23
  2011
• Hello! Project DVD Magazine Vol.24
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• Hello! Project DVD Magazine Vol.25
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• Hello! Project DVD Magazine Vol.26
  2011
• Hello! Project DVD Magazine Vol.27
  2011
• Ousama Game
  2011
• Petit Best 12
  2011
• Ring of Curse
  2011
• Zomvideo
  2011
• ℃-ute 2011 Spring 'Chou! Chou...
  2011
• ℃-ute Zen Single MUSIC VIDEO...
  2011
• Hello! Channel Vol.1
  2010
• Hello! Channel Vol.2
  2010
• Hello! Channel Vol.3
  2010
• Hello! Project 2010 Summer...
  2010
• Hello! Project 2010 Winter Kachou...
  2010
• Hello! Project 2010 Winter Kachou...
  2010
• Hello! Project DVD Magazine Vol.20
  2010
• Hello! Project DVD Magazine Vol.21
  2010
• Hello! Project DVD Magazine Vol.22
  2010
• Petit Best 11
  2010
• ℃-ute 2010 Spring ~Shocking LIVE~
  2010
• ℃-ute 2010 Summer-Autumn ~Dance...
  2010
• Hello! Project 2009 Summer Kakumei...
  2009
• Hello! Project 2009 Winter Kettei!...
  2009
• Hello! Project 2009 Winter Kettei!...
  2009
• Hello! Project 2009 Winter...
  2009
• Hello! Project DVD Magazine Vol.16
  2009
• Hello! Project DVD Magazine Vol.18
  2009
• Hello! Project DVD Magazine Vol.19
  2009
• Petit Best 10
  2009
• ℃-ute 2009 Cutie Circuit ~9gatsu...
  2009
• Berryz Kobo & ℃-ute Nakayoshi...
  2008
• Hello! Project 2008 Summer...
  2008
• Hello! Project 2008 Winter...
  2008
• Hello! Project 2008 Winter ~Live...
  2008
• Hello! Project 2008 Winter...
  2008
• Hello! Project DVD Magazine Vol.12
  2008
• Hello! Project DVD Magazine Vol.14
  2008
• Hello! Project DVD Magazine Vol.15
  2008
• Petit Best 9
  2008
• Hello! Project 2007 Summer 10th...
  2007
• Hello! Project 2007 Winter ~Live...
  2007
• Hello! Project 2007 Winter...
  2007
• Hello! Project 2007 Winter...
  2007
• Hello! Project DVD Magazine Vol.10
  2007
• Hello! Project DVD Magazine Vol.11
  2007
• Hello! Project DVD Magazine Vol.8
  2007
• Petit Best 8
  2007
• ℃-ute 2007 Spring ~Golden Hatsu...
  2007
• Hello! Project 2006 Summer...
  2006
• Hello! Project 2006 Winter...
  2006
• Hello! Project 2006 Winter...
  2006
• Hello! Project DVD Magazine Vol.4
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• Hello! Project DVD Magazine Vol.6
  2006
• Hello! Project DVD Magazine Vol.7
  2006
• Hello! Project Sports Festival...
  2006
• Petit Best 7
  2006
• ℃-ute 2006 Cutie Circuit Final...
  2006
• Hello! Project 2005 Summer no...
  2005
• Hello! Project 2005 Winter...
  2005
• Hello! Project 2005 Winter ~A...
  2005
• Hello! Project DVD Magazine Vol.2
  2005
• Hello! Project DVD Magazine Vol.3
  2005
• Hello! Project 2004 Summer ~Natsu...
  2004
• Hello! Project 2004 Winter ~C'MON!...
  2004
• Hello! Project DVD Magazine Vol.1
  2004
• Hello! Project Sports Festival 2004
  2004
• Yaguchi Mari to iku! ℃-ute...
  2004
• Yaguchi Mari to iku! ℃-ute...
  2004
• Hello! Morning Haromoni Gekijou...
  2003
• Hello! Project 2003 Summer...
  2003
• Hello! Project 2003 Winter...
  2003
• Hello! Project Sports Festival 2003
  2003
• Koinu Dan no Monogatari - Making Of
  2003
• Hello! Project 2002 Summer ~ONE...
  2002
• The Story of Dan the Puppy
  2002