Based on the seinen manga by Kumakura Takatoshi, serialised in Afternoon.

Shizuru and Mizuki are sisters born in a family with spiritual abilities. While the older one, Shizuru, is able to see spirits, goblins and stuff like that, the younger one, Mizuki, has a propensity for getting possessed.

As their calm and peaceful days of youth progress, they have many encounters which lead them to respect and treasure life and all its beauties and marvels.

This is a story about the experience of youth and growing up. In one word, spiritual.