1 Season
13 Episode
Hakone-chan - Season 1 Episode 2 Hakone-chan and the Secret Box
Haruna's sister, Aki, doesn't believe is the spirit of the hot springs, but while they're taking a bath, she shows them her powers.
- Country : Japan
- Genre : Animation
- Director : Yuuji Yanase, Daisuke Yui
- Cast : Saki Ono, Taishi Murata, Mao Ichimichi, Yuuki Kuwahara, Ayaka Asai, Ayana Taketatsu
