Mako or Sakurai Mako (桜井真子) was born October 7th, 1986 in Tokyo, Japan. She is a member of a band called Bon-Bon Blanco.
Her main role is to play the maracas. She has also performed in a drama called Meido in Akihabara.
Her anime voice acting debut was in Kamichu! where in the ending theme song, her character also plays the maracas.