Mur Mur is a small, mischievous girl who is the servant of Deus Ex Machina in The Future Diary series. She looks innocent, but she holds many secrets and is much more important than she first appears. Even though she was supposed to be a made-up character from Yukiteru Amano's imagination, she exists for real and regularly stirs up trouble in the survival game. Her favorite foods are corn and rice cakes. Mur Mur is tied to a mysterious past that connects her to Yuno Gasai, the previous world, and the godly powers at the heart of everything.
Mur Mur looks like a petite girl and always has a pointy, arrow-shaped tail.
She stands out with a simple but cute style and often wears bright clothes.
Her forehead sometimes has a mark: a “1” when she is the first-world Mur Mur, or a “2” when she is from the second world.
Later, after gaining the core of Deus Ex Machina, a cross mark appears on her forehead to hide her true identity from the second world.
Mur Mur acts playful and cheeky, often making jokes and teasing the other characters.
She loves eating corn and rice cakes.
She does not always follow orders from Deus Ex Machina and likes to mess with the events of the game for her own amusement.
She enjoys observing the chaos and sometimes secretly helps or tricks other players.
Mur Mur was once an evil demon who was tamed by Deus Ex Machina.
Because of this, her powers were locked away and she was forced to serve Deus Ex Machina.
She is closely linked to the game’s events and sometimes takes actions even Deus Ex Machina cannot predict.
Her deeper secret is that she actually comes from the first world, the same world as the original Yuno Gasai.
She sealed and replaced the second-world Mur Mur, and her true boss is Yuno Gasai, who became god in the first world.
Much of Mur Mur's power is sealed, but she still has some magical abilities and can influence the game and the world when she wants.
She can create mischief, manipulate the environment, and secretly control parts of the game.
When she gets Deus Ex Machina's core, her power grows even more, and the cross mark appears on her forehead.
Mur Mur serves Deus Ex Machina as her main master most of the time.
Secretly, she also follows Yuno Gasai from the first world, who became a god.
She gets involved with many of the contestants in the game, sometimes helping and sometimes tricking them.
Interfering in the Game
Mur Mur often gets involved in the survival game.
She bets on Yuno Gasai to win and finds ways to change the outcome of certain events.
For example, she tricks Keigo Kurusu into betraying Yukiteru Amano.
Secret Identity Revealed
It is later shown that Mur Mur in the second world is not the real one.
She came from the past together with Yuno Gasai, replaced the second-world version of herself, and hid her true role.
From then, Yuno Gasai from the first world is actually the one in charge, not Deus Ex Machina.
Becoming the Ruler
After getting Deus Ex Machina's core, Mur Mur reveals her real forehead mark and tries to rule the world herself.
However, Yuno Gasai isn’t really interested in ruling the world, so Mur Mur wants to take over and play the role of god herself.
Extra Appearances
In the bonus chapters in the manga, “Mur Mur Sensei’s Secret Diary Corner,” she shares secret facts about the story that do not appear in the main plot, adding more fun details about the world.
In the side story "The Future Diary Paradox," Mur Mur takes over Yuno Gasai’s role for a short time.
Mur Mur often talks directly to the readers in bonus manga pages.
She is known for being mischievous and breaking the fourth wall.
Following the game’s many twists, Mur Mur’s true loyalties and goals are always a mystery, and she keeps fans guessing until the very end.
Her favorite foods are corn and rice cakes.
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