TV ANIME: Onsen Yousei Hakone-chan [BGM: ???]
ORIGINAL TITLE: 温泉幼精ハコネちゃん
PV LINK: N/A (YOUTUBE)
Hakone is 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 Tōya stumbles across her at a hot spring and ends up joining Hakone in retrieving her original powers.