Monomi

Usami (ウサミ Usami), also known by her full name, “Magical Girl Miracle ★ Usami” (魔法の少女奇跡★ウサミ Mahō no shōjo kiseki ★ Usami), is a magical rabbit that appears as the teacher of the students in Danganronpa 2: Goodbye Despair. She is an Artificial Intelligence working for the Future Foundation.

When Monokuma makes his appearance, Usami was assaulted by him, breaking her wand which grants her magical powers in the process. Her appearance was then greatly altered and her name is changed into Monomi (モノミ Monomi) without consent by Monokuma, who adopted her as a younger sister.

Monomi was executed in Chapter 5 along with Chiaki Nanami, her artificial big sister, both of whom were created by Ultimate Programmer Chihiro Fujisaki. However, she mysteriously reappeared during the Forced Shutdown and defeated AI Junko Enoshima.

Monomi returns in Danganronpa 3: The End of Hope's Peak Academy.

Appearance
Usami is seen as a pure white with black eyes and has light pink blushes on her cheeks and a pink bow. Usami has white wings attached to her back and wears a pink bib with a gold charm attached to it, and wears a pink and white frilled skirt along with white stockings.

As Monomi, she looks much more like Monokuma, and much like him, she is two-toned, split down the middle. Her right side is white with one black eye, while her left side is pink and has one robotic red eye, lost from fighting Monokuma. She wears a white diaper with three black buttons on the left and right sides and has an orange bow on her right ear.

She retains her two-toned complexion in Danganronpa 3: The End of Hope's Peak Academy, but her bow is replaced with a yellow crescent-shaped hairpin and the buttons on her diaper are white instead of black. According to her DR3 profile, she is literally a stuffed toy.

Personality
Usami is gentle and kindhearted, but also very naive and not very smart. While she is strict about rules and certain other things, it's very easy to trick or persuade her.

All she wants is to foster love, friendship and good manners, emphasized in her catchphrase "love, love!". Because of this, she can even come across overly sweet and annoying. She encourages everyone to live in peace and strengthen their bonds with each other. She is very happy and proud when everyone gets along, and scolds them when they do bad and kindly asks them not to do it again.

She is afraid of violence, fighting and cruelty, considering all of it "a big no-no" - the mere thought frightens her. She also emphasizes the importance of caring for the environment, prohibiting the students from throwing trash anywhere on the island (because she stated if you littered it would trigger an alarm).

Though she is very childish, she is aware of sexuality and tries to prevent the teens from doing anything "shameful". Comically, she sometimes incorrectly assumes that one of her students is interested in her and she's shocked by the idea of a romance between teacher and student.

As the students' teacher, Usami often tries to guide and encourage them and take charge, but she is never taken seriously. She lost the last lingering thread of her authority after she was turned into Monomi and became an unwitting pawn to Monokuma. She is often the butt of his jokes, physically and verbally abused on a regular basis. Monomi rarely tries to fight back, as she believes she can't do anything without her magic stick, but she sometimes tries to snark back at Monokuma with poor success.

The students are very distrustful of Monomi, because she is keeping important information from them and some believe she is working with Monokuma. They are also annoyed by her overly sweet nature and low intelligence. They often think she's useless, and when she does help, she is never appreciated. It makes her sad, but she says she is used to it. She is often ignored and sometimes downright bullied, but Sonia Nevermind and Chiaki are shown to be a bit more nice towards her.

In the end, Monomi only wants to help and protect her students, and does it even if she isn't appreciated. Though she is shown to be somewhat cowardly at times, she is ready to give her life for them at any time. She is supportive towards everyone and believes in them no matter what. She is completely forgiving and never blames them for the murders, even though it makes her shocked and sad whenever someone does something bad (instead, she blames Monokuma, calling him the root of all evil). This is especially evident in her dialogue with Nagito Komaeda, who is distrusted and hated by most other characters.

Usami/Monomi appears to be a relatively young AI, which may explain some of her childish and naive traits, along with the fact that she was created into an artificial world where violence and other bad things shouldn't even exist.

Makoto Naegi mentions that there was a possibility that Usami's behavior might have gone too extreme, to the point where the students would have to escape the program, but this did not happen in the main story nor in Island Mode.

Prologue - Welcome to Dangan Island! Panic at the Heart-Throbbing School Trip!?
In the beginning of the events of the second game, Usami introduced herself to the students as their teacher, and explained the rules of their life on the island. She also showed her magical powers to the students, an example being when she changed a chicken into a cow.

Later, after the students gathered their very first Hope Fragments, Usami gathered them on the beach to give them presents, which were received happily, making them trust that they were safe and sound on the island. But Monokuma soon took over, destroyed her magical staff and left her powerless. When she tried to stand up to Monokuma she was quickly executed via Monobeast. The rest of her copies were then turned into Monokuma's adoptive sister, Monomi.

Chapter 1 - Destination Despair
In Chapter 1, Monomi explained numerous things to the students, such as how the old lodge was undergoing renovation or that the beach house showers did not work. She also aided Chiaki in guarding the party that was thrown by Byakuya Togami to keep Monokuma away. After every school trial, she successfully defeats a Monobeast, which allows the students to explore the other islands.

In every trial, Monomi is hanged by Monokuma with a rope beside his private chair with the exception of Chapter 5.

Chapter 5 - Smile at Hope in the Name of Despair
Monomi was executed alongside Chiaki at the end of Chapter 5 where all of her remaining copies were destroyed.

Chapter 6 - This is the End Goodbye Academy of Despair
At the end of Chapter 6, Usami briefly returns in her original Magical Girl appearance and single-handedly defeats the giant avatar of Junko Enoshima after the Forced Shutdown was activated. It is unknown exactly how she came back after being executed in Chapter 5 and this is even questioned by the real Byakuya Togami after they all escape the game.

Danganronpa 3: The End of Hope's Peak Academy
Usami, as Monomi, works under Future Foundation. She was apparently invited to Makoto Naegi's trial and because of this she becomes a witness to the "Final Killing Game". She sees Monokuma as an enemy, due to him starting the games, but because she talks using "dechu" and "machu" she is taken less serious.

Monokuma
When Monokuma shows up on the island, he adopts Usami as his little sister without her approval. She is usually beat up by Monokuma when she irritates him, which happens often. Monokuma also likes to make fun of her. He also always punches or harms her when she bothers him.

Chiaki Nanami
Both Chiaki and Usami were created by Alter Ego. They are usually trying to protect the other students from Monokuma, as seen in Chapter 1 when they stand guard outside the old lodge together. When Chiaki accidentally kills Nagito, she is executed along with Usami.

Remnants of Despair
Most other students either distrust, or ignore her, possibly both. She continues to try and make friends with them, but they all decline her.

Nagito Komaeda
Many of the students after the first trial, distrust Nagito. However, Usami believes in his good side and tries to encourage him to be more self-confident, make friends and do good things. Unfortunately, Nagito doesn't take her seriously and, just like the others students, he considers her an annoyance. After Monomi was in the Final Dead Room with Nagito, she remarks that she is afraid of Nagito since he tried to shoot himself when he had to play Russian Roulette as the last part of the Final Dead Room.

Quotes

 * “I'm Usami! Magical Miracle Girl ★ Usami! I'm an itty bitty girl who's sweet like milk!”
 * “Hue..?”
 * “It's a place where everybody can study in peace and harmony. That's what being a student is all about.” (explaining about the library in the Second Island)
 * “In a quarrel, both sides are to blame. That's why it's better to just have no sides at all!” (to Kazuichi Soda and Fuyuhiko Kuzuryu)
 * “Um... you mentioned "imitation murder" more than once, but... what is that?” (to Nagito Komaeda)
 * “You hate me that much?!” (to Monokuma)
 * “You stupid brother!” ('to Monokuma)
 * “Heeeey! Don't put my likeness in your movies without my permission!” (to Monokuma)
 * “Yep yep... The debate proceeds when you assume you can believe each other...”
 * “I'm Monomi! And my heart is throbbing like crazy right now!”
 * “Ugh... I can't do anything, how annoying... But I'm just gonna believe in everyone, that's the least I can do...”
 * “For those kids, which option is hope and which is despair?“
 * “Everything...is for the sake of a future filled with hope...”
 * “I don't eat moss balls! I just enjoy looking at them!” (to Monokuma)
 * “Seriously...he's like the king of unreasonableness. Why did it turn out like this...?” (talking about Monokuma)
 * “We were supposed to have a fun, friendly school trip, but it turned out all bloody instead...”
 * “Everyone, do your very best! Don't lose to yourself! And don't forget to save frequently!”
 * “In any case, you can't bweak the wules. Beside, it's fine if you want to have fun but don't forget your studies.”
 * “Bye bye! Everyone, please do not forget your teacher.”
 * "Love Love!"

Panic Talk Action

 * “Hajime, you stupidface!”
 * “I won't let you!”
 * “Let's all get along...”
 * “Burst open and mix!”
 * “Disappear!”
 * “I can't lose!”
 * “Don't defy your teacher!”
 * “I'll lower your grades!”
 * “Chiaki and I aren't best friends!” (Final Argument)

Trivia

 * Monomi talks in a very childish way, sometimes including chu sounds in her speech (most notably replacing the "desu" copula with "dechu").
 * In one of her many attempts to get Monokuma out of the island, she loses her eye, causing Monokuma to mockingly name her “Monomi”.
 * After Monokuma alters her, even her dialogue display, which originally labeled her Usami, immediately changes to Monomi (which also noticed by Monomi herself).
 * Oddly enough, Monomi can understand incoherent speech. She acted as the translator when Teruteru Hanamura broke down and began uttering nonsense in the first trial.
 * In the beginning of the second class trial, after the students discuss the murders which took place in Hope's Peak Academy and inspired the Twilight Syndrome Murder Case, Monokuma and Monomi (who is tied up next to his seat) get caught up in a small discussion over how violent high school students have become nowadays. The humor behind this little exchange stems for the fact that Monokuma and Monomi's voice actresses, Nobuyo Ōyama and Takako Sasuga, respectively, are both senior voice actresses who are best known for the roles they have portrayed in some of Japan's most famous, long-running animated shows since the 1970's.
 * In Chapter 2, after Fuyuhiko Kuzuryu nearly dies Monomi says: “If I could save himself myself, I would... but my magical stick is gone and I am close to powerless...” immediately after the murder of Mahiru Koizumi, Monomi apologized for not fixing the bathroom because her magical stick was gone. This most likely points to her magical stick as being the direct representation of her powers within the Neo World Program.
 * During the third Class Trial, Monokuma mentioned that Monomi eats moss balls. Monomi then reacted angrily by saying that she doesn't eat moss balls, but simply enjoys looking at them. Her reaction to Monokuma's words may be hinting that she does in fact like eating moss balls because her reaction is similar to the normal gag reactions in comedy manga/anime of a character hiding the truth by making an excuse after someone said something about the character. Either that, or Monomi indeed like watching moss balls.
 * In Chapter 4, she reveals that she, along with her brother, fear mice. Specifically, Usami is scared of the idea of them biting her ears, pointing this out after the students were talking about the locked doors of Nezumi Castle.
 * This shared trait of Monomi and her "big brother" Monokuma is meant to further develop the intentional similarities between Monokuma and Doraemon, who is known to have had his characteristically absent cat-ears gnawed off by a robotic mouse at one point and is deathly afraid of mice ever since.
 * This trait is later revealed to be used to keep her away from Nezumi Castle if she went rogue, acting as a hiding place for the students and containing the code to enter the ancient ruins so that they can graduate and escape the program in case of that failure.
 * She makes a cameo appearance in the first game during the School Mode mini game as “Warlockkuma”, one of Monokuma's requested backups. If you complete every backup that Monokuma requests, "Warlockkuma" comes alive as Usami, prompting Monokuma to declare “a mess up to the time line”. She then defeats Monokuma and lets everyone leave the academy.
 * Based on the events of Danganronpa's School Mode and Danganronpa 2, Usami is stronger than Monokuma in a fair fight. Monokuma only takes over the island trip by attacking Usami when she's distracted, allowing him to break her Magic Stick and convert her into Monomi.
 * Usami/Monomi is the only character (along with AI Junko and Chiaki) who dies in the second game.
 * She is the only known Monokuma Unit which is truly benevolent.
 * She makes another cameo appearance in Danganronpa Another Episode: Ultra Despair Girls during the CG ending where her face appears on the side of a building above the word "Fin."
 * Monomi is the shortest character so far in the series, standing at 55 cm (1' 8), only a bit over half of Monokuma's height.
 * Beta Monomi is basically a red or pink Monokuma with deadly knives, but on the right side it has bunny ears, but still the same red/pink tone; except a diaper with a broken cartoon or realistic skull on the front (or a bow on the navel), but she still holds the knives. So Monomi was about to be evil or nice- but she kills despair with her knives and spreads hope that way, is what is said about Beta Monomi.
 * Some fans speculate that Usami's normal attire (prior to her "makeover") is heavily based off Sayaka Maizono in her idol costume.
 * Usami_Test_Model.png is (right picture) a model named test_usami_model.gmo, which features running and idling animations. This character's origin is unknown. It appearance looks like a ginger fox with a red sweat band with the words "INU" (mean "dog" in english) in uppercase letters and a red jersey with the number 1 on it and two sneakers.