Ohana is a 16 year old girl living in Tokyo with her mother and her boyfriend. One day they find themselves in debt and her mother and her boy friend decides to evade it. This is somewhat bitter and ironic because Ohana is forced to leave her childhood friend, Kouichi, who turns out to be in love with her.
Ohana gets excited about this and asks about where they are going to move. Ohana finds out that she will not be going with them. Instead Ohana is sent to live with her grandmother, Sui Shijima, who owns a hot spring inn called the Kissuiso.
The inn turns out to be not what she imagined. Ohana's stern grandmother quickly sets her to work at the inn.
It also does not help that the other employees at the in are either not very helpful or just outright rude to her. Ohana struggles to adapt to her new life at the inn, one struggle at a time.