Kanako's parents abandoned her at an early age, leaving her to be adopted by the Urashima family. She bonded with her step-brother, Keitaro, and the two promised to run their family inn together. Kanako gradually grew to love Keitaro, but he was obsessed with a girl from his childhood and never noticed her affections. After finishing high school, Keitaro obsessed over his studies and later on moved out to become the landlord of Hinata Inn on his own.