Tomoe is Nanami's familiar, they live together in the shrine with the spirits Onikiri and Kotetsu. This is before Nanami meets Mizuki. In this story you live with Kurama, you're paying him to teach you how to fit into human society, only Kurama is troubling with his feelings for you, one day Kurama suggests you join...
You just finished your training to become a survey corps memeber, this is what you have been dreaming of your entire life. You made lots of friends during your training, and they all joined the survey corps too. Life seemed great at that point. But after a while you discover that a very odd person has taken an interes...