Volume One: Historical scholar Chihiro Ogino stumbles into the Spirit World a decade later to discover alot has changed: Haku's the powerful head of the bathhouse. Allured by the charm of the Spirit World, Chihiro makes a deal with Haku to study under his care for 6 months. The two fall in love, but in a world as alluring as it is dangerous, will the path of water always be smooth?

Chihiro's younger cousin Ryumiko has always dreamt of finding Chihiro's 'dream world' & solve the mystery behind the boy 'Kohaku'. But when Chihiro moves to college, leaving her cousin at home, what happens when Ryumiko stumbles into the world of spirits?