Kiken na Aneki (2005)

Hailing from the Miyazaki countryside, Hiroko (Misaki Ito) has been told since her youth that all she has is a beautiful face. Her brilliant younger brother Yutaro (Mirai Moriyama) who aims to become a doctor, is her only pride. For his sake, she is willing to put up with all sorts of hardships in a display of unconditional love.