A Taste of Honey(2011)

Naoko, who is a medical student falls in love for the first time for her uncle, Masato. She gets admitted into a prestigious medical school in Tokyo to get closer to him. There, she meets Aya, the daughter of the hospital's director and also a talented researcher at the school. Aya is also Masato's girlfriend. Aya feels insecure when Naoko meets Masato again.