In 2007, Erina Mano became a member of the Hello! Project futsal team Gatas Brilhantes H.P. and its musical group Ongaku Gatas. On March 29, 2008 she became a soloist after graduating from Ongaku Gatas, working under the management and promotion of J.P Room, and later under Just Production. Erina Mano graduated from Hello! Project on February 23, 2013.