Kaze no You ni(2016)

Kaze no You ni

Sanpei is a boy beekeeper and the sole survivor of an accident that killed his entire family. Sanpei meets Chiyo, a girl who gets stung by a bee, and starts a new life in her village. Eventually, Sanpei cultivates the land that the villagers had abandoned, and then disappears. In the land now filled with flowers, Chiyo waits, believing Sanpei will return.

(Source: Anime News Network)