From Condensation:

This is a story about Emi (heiress to an onsen) and Aki (heir to a hotel) who started out as childhood friends and eventually became rivals. Emi has been trying to beat Aki since the time they were kids. Now that the two are in high school, will Emi finally achieve her goal? Or will Aki get the best of her? What happens if the unthinkable happens - and they actually fall in love!!!?