Rin Hanasaki moves schools during her sophomore year, and while the change is overwhelming for the meek girl, she meets new friends...and an emotionless dog demon who stays attached at her side.

After a night partying and getting absolutely wasted, Rin finds out that she’s pregnant, and the father is none other than the guy she had a drunken fling with: Sesshomaru.

Sesshomaru has returned for Rin, for good this time. They now travel together, slowly falling in love. Devastation occurs when Sesshomaru must produce a full blooded youkai child. His mother interferes by taking Rin on a journey to turn her into a youkai. How will Sesshomaru cope with this?