Yumeji Fujiwara is a young male student like any other who, after an event that occurred 10 years previously, gained the power to see the aura of other people's dreams, and the ability to predict what kind of dream they will have next. Since then, he has started to have strange dreams of cats following him for an unknown reason. The boss of the cat army, John Doe, tells him that his body is needed to access the real world. One day, as he was returning home from his errands, a mysterious girl falls on top of him. This girl, named Merry Nightmare, is actually a dream demon, who's searching for a way to get back to her world. Yumeji decides to help her, and a gate to the world of dreams opens again, this time in full daylight. She appears in the daydream worlds looking for an answer to how to get back to her world. Meanwhile, an evil dream demon named Pharos Hercules is leading other dream demons to make humans into their vessels in order to raise an army, killing those that oppose him which causes humans to lose sight of their goals and ambitions. Yumeji eventually becomes Merry's partner, using his ability to scout out dream demons so Merry can hunt them. After Hercules' downfall, Merry's quest in returning to the dream world continues. In the meantime, a mysterious boy named Kyou Shiragi transfers to Yumeji's class, where dream demons are suddenly manifesting; as a result of their losses, they cause humans to accomplish their goals instead of destroying. With dream demons seen by previous vessels, Yumeji and Merry now have to investigate this unusual phenomenon.
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Writing Club
All-Girls' School
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Anime Original
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Manga
The manga series by Ushiki Yoshitaka began serialization in Manga Time Kirara Forward magazine from August 10, 2008 and is still ongoing. Twenty threetankōbon volumes have been released so far, the first of which was released on October 27, 2008. It has been licensed in France and Germany with the title Merry Nightmare.
In their Winter 2011 Anime Preview Guide, the majority of Anime News Network's staff of reviewers gave modest ratings for the first episode. Theron Martin states the series is straddling the line between the typical and the really weird, but figuring out what's going on should be half the fun. Hope Chapman comments that the first episode was unusual in that it was nicely paced and "goes down easy." Gia Manry compares Yumekui Merry to a poor man's Soul Eater with its definite sense of style over substance.