Chronologically, I couldnt quite place where this cute and emotional movie sat in the Blue Exorcist timeline, but it didnt exactly effect the way I felt about it. Like any anime movie, I dont think that this story had any direct storyline needs, other than the fact it was cute and heartbreaking all at the same time. In this movie, you see Usamaro, a cute little rabbit demon that eats away memories that he feels people are pained by, in order to give them a happier, more carefree life. Rin, being Rin, takes him under his wing and soon we see that not only he andhis friends, but us as the audience has also fallen in love with this little boy. However, him being a demon, nothing good can really come of the damage he has already caused and at the end we see that he realizes it. It broke my heart, but not in such a way that I feel like there is no chance of ever seeing the ball of fluff ever again.