A mysterious magical girl. Her magic allows her to see into the future. Her first vision was one where a powerful witch attacks Mitakihara City. She is the mastermind behind the magical girl killings. Her wish was to understand the meaning of her life.
Fallen Princess: Her backstory. Her father was a corrupt congressman who commited suicide, and everyone shunned and abandoned her afterwards. When Kyuubey found her to offer her a contract, she was wrapped in a bedsheet in a corner of her now empty home, apparently resigned to Dying Alone.
She also uses her last moments of life to shoot a shard of Kirika's witch body through the barrier, as her last chance to kill Madoka. It works, hitting the poor girl in the torso and killing her.
Light Is Not Good: Invoked because she wears white, the color of light.
Meaningful Name: Oriko means "weaver girl" or "sewing lady" - think of weaving the threads of fate. It also sounds similar to Oracle.
"Mikuni" can also be read as "Beautiful Country" which could connect to her political family, as well as her dream and desire to protect her world.
My God, What Have I Done?: After her death, she's seen in some kind of afterlife, where she's unable to move due to the weight of all the deaths her actions caused.
Never a Self-Made Woman: An Invoked Trope, as after her father's fall from grace, she basically thinks that people only saw her father in her, liking her because he was respectable and shunning her because of what he had done. She thus makes her wish to find out what the meaning of her life is.
Nice Hat: She has an odd headdress on her magical girl costume.
Rapunzel Hair: Even when she puts it up in a side-ponytail, it reaches her waist.
Seer: Her powers appear to let her see the future.
Set Right What Once Went Wrong: When she foresees the future of Mitakihara and its destruction, she decides to change it by manipulating events to give her the opportunity to kill Madoka.
A young girl that Oriko names as a potential magical girl candidate to Kyubey. Her wish was to heal a dismembered Kyouko, which grants her healing spells; her offensive abilities involve using her staff to cause tremors.
Abusive Parents: Her father never was around. Her mother burnt her with cigarettes and told her she was worthless and useless.
Healing Hands: To the point she can heal someone (Kyouko) who just had their arms and legs ripped off. It's unclear if this level of healing is her power all the time; or whether that instance was the wish she made with Kyubey.
I Wished You Were Dead: Admits she's not really sad that her parents are dead because of the way they abused her, though she doesn't want to be alone.
Morality Pet: Kyouko really, really doesn't want to be a nurturing protector and she definitely doesn't want to be nice about it. But being mean to Yuma is like kicking a puppy.
Parental Abandonment: Her father was never around and left Yuma in her abusive mother's care.
Red Herring: Despite what many thought, no, she's not Charlotte.
Also an in-universe example. She, along with the magical girl murders, was used to distract Kyubey from Madoka so that Oriko would have enough time to kill her.
Rousing Speech: Gives one to Kyouko and Mami after they've given up hope when they discover that witches come from magical girls. Involves Do Not Go Gentle.
A "black magical girl", and a friend of Oriko. She's the culprit behind the magical girl killings. Her wish involved changing her formerly quiet personality to a more outgoing one, and it grants her time-slowing magic.She is the protagonist of Noisy Citrine, a expansion of the story.
Excuse Me While I Multitask: While fighting a witch, Kirika tells Oriko how much sugar she wants in her tea, and argues with her about being treated like a kid.
Evil Counterpart : To Homura, in many ways. Kirika and Homura both had control over time magic, they lacked confidence and wanted a purpose in life and they are attached to a girl who was nice to them.
Mortal Wound Reveal: After her fight with Mami, it's revealed that her Soul Gem is cracked and she's turning into a witch.
and the only reason she was hanging on at that point to even do the reveal is because her time slowing ability was able to slow down her transformation into a witch.
One-Winged Angel: When Kirika figured out that she can't defeat Homura and the other magical girls, she turns herself into a Witch.
Only a Flesh Wound: Apparently, being shot at the knee by Mami is not enough to stop her. Too bad, while she's healing, Mami is ready to blast her head.
Too Many Belts: A fairly minor case, but present in both her civilian and magical girl outfits.
Time Master: Her power is to slow down everything except herself and (presumably) her allies, making her seem fast. Notably, this power can actually slow down the destruction of a witch's barrier after it's defeated. She even slows down her own transformation into a witch.
This section is only for tropes that appear exclusively in Puella Magi Oriko Magica. See here for character tropes from the original series.
Mami Tomoe
A magical girl veteran who is investigating the recent murders of magical girls.
Adaptational Badass: She was already Badass in Madoka Magica, but her track was cut short due to Charlotte chomping her. Here? She shows further the extent of her Badassery if her track wasn't cut short at all.
Despair Event Horizon: When she and Kyouko discover that witches come from magical girls. Ultimately subverted when Yuma gives a Rousing Speech and brings the two back from the brink of despair.
A magical girl veteran who becomes an "older sister" figure for Yuma.
Adopt the Dog: Though she hadn't yet abandoned her Jerkass nature at the time Oriko Magica begins, she finds it in her heart to take Yuma in, acting like a mother to her better than her real mother did.
Despair Event Horizon: When she and Mami discover that witches come from magical girls. Ultimately subverted when Yuma gives a Rousing Speech and brings them back from the brink of despair.
Jerkass Has a Point: She's correct that it's impossible to save everyone during the attack on the school, as Mami makes a similar point herself. Unfortunately, Madoka is also one of the people she's unable to save.
Out-Gambitted: By Oriko. So Homura thought that killing Oriko would save Madoka? It didn't: Oriko still managed to kill her.
Demoted to Extra: Makes only a two panel appearance in volume 1, though her role is expanded somewhat in volume 2.
Doomed by Canon: Since Homura's wish involves Madoka's survival and this is not the timeline depicted in the show, it is certain that she will die or become a witch, forcing Homura to reset time. The former happens as a result of Oriko's actions.
What the Hell, Hero?: Calls Homura out for only protecting her and refusing to help Hitomi and Sayaka, among others.
Madoka: How can you be so cold, Homura-chan? Why are you saving only me? You have such an incredible power, Homura-chan! But if you're going to abandon everyone and run away, then you shouldn't save me!
Break the Cutie: Hitomi didn't know anything about Witches and Magical Girls in the original. In this one, she witnesses a particularly bloody attack on Mitakihara Junior High, gets caught in a witch barrier with her friends and other students, and then sees Madoka die horribly right in front of her and Sayaka. To say the kid's broken by that is an understatement.
Heroic BSOD: Suffers a HUGE one during the witch attack on her school, when she sees the lifeless body of a student inside the magical barrier. She doesn't look much better when she and Sayaka tend to the dying Madoka.
Expy - Very likely to be a reference to a certain other young female teacherwho suffers a gruesome death in *two* alternate universes. Considering that Mami's death scene is also a possible reference to the same franchise - and the manner of that other teacher's death - it's not too much of a stretch to see this parallel.
Abusive Parents: She treats poor Yuma like utter dirt by burning her head with cigarettes, as well as verbally and physically abusing her daughter in other ways. It's pretty unsurprising that the way she dies to a witch is actually cheered by most.
Karmic Death: Abuses her daughter Yuma horribly, and dies a pretty horribly gruesome death.