Yui Koike (born April 4, 1991 in Saitama, Japan) is a Japanese gravure idol and actress known for her role as Ahim de Famille/Gokai Pink in the 2011 Super Sentai series Kaizoku Sentai Gokaiger. She's also a member of a idol group named "Tomato n'pine" (or Tomapai for short) 