My Man (2014) on Netflix

Plot summary

Jungo is 26 and an orphan himself when he finds ten-year-old Hana Kusarino wandering in a shelter after the 1993 Okushiri earthquake wipes out her town, and he decides to adopt her as a favor to her parents. Oshio, the village elder, has misgivings. Six years later the two live in Monbetsu, Hokkaido, where Hana attends high school and Jungo cooks for the local coast guard, and Oshio keeps a grandfatherly eye on them. Jungo's girlfriend Komachi feels he gives his adopted daughter more affection than he gives her. Hana, visibly jealous, asks Komachi whether she would die for Jungo. Disturbed by the question, Komachi ends the relationship and departs for Tokyo.