Shiemi and Rin Okumura are twins, adopted and raised by the priest Shiro Fujimoto without ever meeting their real parents. But Shiemi is different from other kids, she can see things that no one else can. What will she do when her father finds out? Will she become an exorcist? Does her self-sacrifice have limits? Can she grow up sane? (Shiemi/Yukio switch fic, fluff AND dark)

A demon kidnaps the Okumura twins a few months before their seventh birthday, and drags them into the future intending to kill them. Then their adult selves save them! Now the kids are stranded in the future with these two 'very scary' but friendly demons, while more pursuers go after their lives. (AU)

Rin figures out how to shapeshift into a cat. Then Izumo finds him while he's trapped in that form. What will they do when Izumo's secret love of animals comes out, after she mistakes him for a normal cat?

What if Yukio chose to be honest about what he felt? If one day he decided to look in front of a mirror and sort his emotions out on his own?

In the far future, the Okumura twins investigate an abandoned genetics lab of dubious legality. No one has been able to survive down there long enough to discover what sort of demon killed the researchers. When they come face to face with it and realize how frightening familiar it looks, can Rin take the painful route, or will he try to find another way to deal with him?