Dream Eater Merry Episode Rating Graph

The president of Yumeji's literature club, Mei Hoshino, has been sending texts with a mysterious boy named Chris Evergreen. Later that day, Yumeji, Mei, fellow club members Takateru Akiyanagi and Saki Kirishima bring Merry along to karaoke, whilst Isana tries to make friends with a transfer student named Chizuru Kawanami. Later that night, when Mei comes to Yumeji's family café having supposedly been stood up by Chris, she suddenly acts weird and texts herself from another phone. Yumeji realises that Mei has become a vessel for Chris, who is actually another dream demon, and chases after her, ending up in her daydream. As Chris prepares to attack him, Merry arrives and defeats him. Before Chris disappears, Mei asks to look at him, and comes off happily from what she sees. From that point, Yumeji decides to work together with Merry to help her find nightmares, and she starts working part-time at the café.

Yumeji and Merry go grocery shopping, where Yumeji learns that Merry had apparently arrived in the real world about 10 years ago. They later meet a girl named Yui Kōnagi, with Yumeji helping her rescue a doll she dropped. Yui, who is actually the willing vessel of a dream demon named Engi Threepiece, has her trigger a daydream within which Yumeji and Merry are caught him. Engi questions them about someone named Pharos Hercules, before beginning to fight with Merry. As Merry talks about sending Engi back to where she came from, Engi reveals that there is no way back for dream demons, revealing her sister was killed when she entered the real world. Questioning whether she has actually been doing the right thing, Merry is unable to fight back against Engi, forcing Yumeji to stand between them, receiving a slash to his chest.

Traumatised by the attack on Yumeji, Merry unleashes a powerful aura that destroys the dream world's moon, forcing Engi to retreat. Upon returning to the real world, Yumeji doesn't have any external injuries, but when he gets home he starts feeling pain and falls unconscious. As he dreams, Yumeji once again meets John, who treats his mental injuries. Meanwhile at school, Saki brings up how many students like Yumi have been suffering from Dream Loss, in which they give up on their goals. John explains to Yumeji that its because of him that Yumeji can enter other people's daydreams, and reveals Hercules is a dream demon who tempted many others into entering the real world. He also mentions that Hercules may know something about Merry, who allegedly entered the real world without a vessel. After Yumeji's wounds heal, John warns him about a strong dream demon named Mystletainn before he wakes up to a worried Merry.

As Isana leaves her guidance counselling session, she temporarily enters a daydream. Although Merry easily defeats Landsborough's henchmen, she is hesitant to attack him due to what Engi had told her. He then taunts Engi, saying that is he is killed, then the dreams of his vessel will disappear as well. Engi attacks Landsborough out of anger, but Yumeji stops her and Landsborough escapes with his vessel. After calming down, Engi explains what she knows about Mystletainn, who has the power to force dream demons into vessels. Meanwhile, Chizuru, a vessel herself, confronts the guidance counseller, Ijima, who is actually Mystletainn's vessel, saying he plans to target Isana who, at that time, Yumeji and Merry discover to have become a vessel.

Yumeji and Merry take Isana to Yui and Engi so that they can meet her dream demon, Pallette, who explains how Mystletainn forced her to make Isana her vessel. Merry wants to send her back, but isn't confident enough to try so with Isana's dreams at stake. Meanwhile, Chizuru confronts Ijima, who reveals his intentions to kill Pallette, as well as questioning Yumeji's abilities, though Chizuru is too conflicted by her duties to Leon to warn Yumeji or Isana. Later that day, Ijima and Mystletainn make their attack on Isana and Pallette, also planning to lure out Chizuru and Leon, but Merry and Yumeji appear to protect them. Mystletainn overwhelms Merry whilst Yumeji's attempt to rescue Parade is thwarted by Ijima, who reveals Chizuru had done nothing to prevent the deaths of other dream demons. As Mystletainn prepares to kill both Pallette and Isana, Chizuru decides to stand in their way to protect her.

As Yumeji and the others grow concerned about Mystletainn's strength, Chizuru brings everyone into her daydream to meet Lestion, who explains that the only way to hurt Mystletainn is a special gun which uses the agony from killed dream demons and the despair from humans as ammo. As Lestion leaves to do his own thing, Engi shows her belief in human dreams due to the extraordinary nature of Merry and Yumeji. Later, Chizuru mentions that Lestion will die if he fires the gun, becoming afraid that her memories with Isana may soon be erased. After the final exams are finished, Ijima comes to the café and Engi brings everyone into her daydream in order to use her home field to her advantage, but Mystletainn kidnaps Isana and summons a large tree. Engi uses her strongest attack on Mystletainn, but she survives and deals a critical blow to her. With Merry similarly outmatched, Yumeji takes Engi's sword and charges towards Mystletainn.

As Yumeji's attack against Mystletainn fails, Lestion sacrifices himself in order to provide Chizuru with a bullet to shoot Mystletainn, shattering her own soul in the process. However, Mystletainn survives the attack and catches Merry in a Bud of Despair, causing her to face her own despair. Yumeji, however, decides not to give and uses the power of his dreams to replicate John's weapon. As Yumeji takes on Mystletainn's attacks, Yui manages to free Merry, who becomes invigorated by Yumeji's belief in her, restoring Engi's dream world and healing her injuries. As Merry and Engi launch an attack on her, Mystletainn swallows Parade, meaning killing her would mean destroying Isana's dreams. However, after encouragement from Yumeji, Merry manages to send Parade back to the dream world and defeat Mystletainn, returning everyone to the real world, with Isana perfectly fine.