Never Let Me Go (2016)

30-year-old Kyoko has a "job". The story starts with her looking back 20 years to her boarding school of Yoko Gakuen in the mountains. Tomohiko, Miwa, and Kyoko are all in the same grade. Inspired by the educational philosophy of the principal - Emiko, teacher Tatsuko joins the boarding school staff, but soon finds the school rather strange...