Nana Seino (清野 菜名, Seino Nana, born October 14, 1994) is a Japanese actress. She has played Sunmi in Tokyo Tribe, Tetsuko Kuroyanagi in the TV Asahi adaptation of Kuroyanagi's autobiography Totto-Chan: The Little Girl at the Window, and Yuko Komiya in the 98th NHK asadora Half Blue Sky, among numerous other TV and film roles. (Via Wikipedia)