Hakone-chan is a tV short anime that premiered in fall 2015, produced by Asahi Production.

About the production: the story comes from a manga, there are 13 episodes of about 4 minutes and its current status is "finished".

Its main genres are comedy, slice of life and supernatural, with themes such as Mythology, Primarily Female Cast, Nudity and Youkai.

On AniList, Hakone-chan has an average score of 55%, an average score, and appears on 8,056 users' lists.

The story follows Hakone, a hot spring spirit who descended to a spa resort on Earth. However, with her long slumber, she looks like a little girl on the outside. The high school boy Touya stumbles across her at a hot spring and ends up joining Hakone in retrieving her original powers. (Source: Anime News Network)

Official synopsis from AniList.