Mariina is Marina Kuroki (黒木マリナ) who is an actress best known for her appearances in the Sailor Moon musicals series. She starred in the Sailor Moon musicals as the lead role of Usagi Tsukino at the age of 12 and finished her Sailor Moon career at 16 in 2005. She also figured in other musicals, such as Rock 'n Jam musicals. She has published photobooks, DVDs and CDs (mostly from the Sailor Moon musicals). She recently moved to J-Pop and sang songs used in various anime Series.