One day a new hotel is opening. Haruna and Aki gets to know Miya, its youthful-looking owner. Miya tries underhanded tactics to gain customers by hypnotizing them using a secret puzzle box quite similar to what Hakone is using. TÅya finds that out, and it is later revealed that Miya is a hot spring spirit--which Hakone identifies as the guardian spirit of Miyanoshita Hot springs, and her archrival. Miya tried using her Water of Servitude on Hakone, but she ran out. Hakone unleashes her magic box's powers, causing Miya to fall for TÅya. Amidst this, two unknown spirits are observing them.