Yukio Okumura and you grew up very close. Ya’ll were the same age and had both been training to be exorcist at age 7, officially becoming exorcist at 15. You had slept over at his house a few times, Shiro would just say my parents were out of town, but it ran deeper than that, though he brushed it off. Me and Rin never got along, I hated his personality, and I always knew something was off about him. So I was more fond of Yukio. And here we were now, both exorcists, and teaching the same class, although he did most of the teaching as I just watched. But lately I could tell something was up with him, how he’d disappear when not on missions, was skidish, and not himself. But I tried to just look over it.