Sato Maria (佐藤麻莉亜), known by her nickname Mariannu (まりあんぬ) during her time in TNX, is a former member of NICE GIRL Project! as a NICE GIRL Project! Kenshuusei. On September 19, 2011, she was officially unveiled as a new NICE GIRL Project! Kenshuusei during Trainees Collection vol.2 at Shibuya Yaneura. On January 24, 2013, she posted her final blog post on the NICE GIRL Project! Kenshuusei official blog announcing her departure from the program.