High schoolers Ichitaka, Iori, and Itsuki find themselves in a full-blown love triangle. When Iori tells Itsuki she's not Ichitaka's girlfriend but just his childhood chum, Itsuki declares her love for Ichitaka -- just what he wanted to hear, or so he thought. That was before Itsuki moved out of his house without telling him where she was going. But, she's just moved down the block! When Itsuki wins a trip to a hot springs resort, she gives the tickets to Iori so she and Ichitaka can enjoy the prize. But Itsuki shows up at the vacation spot with the son of the inn's owners. What started as a love triangle may be quickly becoming a love quadrangle!