Dream Eater Merry

Yumeji Fujiwara is a high school boy with the ability to predict people's dreams or nightmares. Recently, he has dreams of being chased by a weird demon named John Doe. One day, Yumeji meets a strange girl after she falls out of a tree and lands on him. After she leaves to look for her hat, Yumeji finds it, only to suddenly find himself in the world from his nightmare, and he is once again chased by John and his cat army. As Yumeji is cornered, the girl from before arrives, introducing herself as Merry Nightmare, and fights against John. As Merry tries to ask John to take her back to the world he came from, John just laughs at her and leaves, before both she and Yumeji return to the real world.

Merry suddenly collapses, so Yumeji takes him home where his friend, Isana Tachibana, and her father help look after her. Merry explains to Yumeji that she had been hunting dream demons, trying to find a way back to the world she came from, only to be met with more questions. Later that night, Merry decides to leave to do things on her own, whilst Yumeji settles his resolve to help her. Meanwhile, a girl named Yumi with dreams of becoming a nurse suddenly ends up in a different dream world with her resident dream demon, Serio. Serio is suddenly killed, which causes Yumi to lose all drive in her goals.