Yor Forger, nÊe Briar, is the tritagonist of the SPY x FAMILY series. While she works as an ordinary office clerk at Berlint City Hall, she also leads a secret life as a Garden assassin under the code name "Thorn Princess".
Needing a cover to continue her job as an assassin, Yor enters a fake marriage with Loid Forger with the intention of fulfilling both of their respective goals and subsequently becomes the adoptive mother of Anya Forger.
Yor is a very beautiful, graceful, and fairly tall young woman with a slender, curvaceous frame. She has long, straight, black hair reaching her mid-back with short bangs framing her forehead and upturned red eyes.
As an assassin, Yor wears a form-fitting halter-style black dress that shows off her shoulders and chest, with a rose choker and a red rose pattern on the inside of her skirt. The front of the skirt is mid-thigh length, while the back reaches below her knees. She also wears a pair of black thigh-high boots with a rose symbol at the bottom of their sole and black fingerless gloves. The headband she wears is gold colored with a rose and two spikes on each side. Her weapons are of the same color as well. Her hairstyle is similar to the one she wears as a civilian but in a more elaborate updo formed from braids wrapping around her head.
Somewhat counterintuitively, Yor is extremely gullible and naive. Despite her professional competence, Yor has a startling lack of common sense and is rather clueless when it comes to nearly all situations outside her assassin work. For instance, she once asked if boogers made coffee taste better in response to Millie's suggestion that they put one in their superior's coffee. Yor's first instinct with regard to solving everyday problems is seemingly to attempt to apply her assassin skills and mindset to those problems. When that approach invariably fails, she is often left floundering, and this gives the impression of her being comically airheaded. For example, she once answered a question from Loid about Anya passing an exam by talking about causes of death, apparently confusing passing a school exam with passing away. At another point, Loid mentioned to Anya that dogs do not discern consonants well, and Yor somehow misinterpreted it as him saying that dogs do not discern between causes of death well. She then immediately proceeded to have a daydream about threatening Bond with various forms of death that he refused to choose between. What little common sense she does have disappears almost entirely under the influence of alcohol.
Her hyperfocus on her profession and lack of social skills have left her entirely clueless when it comes to romance. This is usually unimportant as romantic interactions between her and Loid are effectively non-existent; neither seems to have any genuine romantic inclinations towards the other. However, in the few instances where any sort of romantic intimacy between the two is even hinted at, Yor becomes extremely flustered and embarrassed. In one instance, when it seemed that she and Loid would have to kiss in front of Yuri to confirm that they were a genuinely loving couple, Yor had to down an entire bottle of wine to disinhibit herself enough to even attempt it. However, the wine only exacerbated her feelings of embarrassment, and she ended up semi-accidentally slapping Yuri across her living room twice in the span of as many minutes. On that note, Yor being drunk in situations in which she thinks that anything romantic is likely to occur never ends well. On one occasion, when Loid flirted with her in an attempt to deepen his cover, she became so flustered that she kicked him clear across a restaurant. During another such occasion, she incorrectly believed that Loid wanted to give her a welcome-home kiss after she'd had dinner with her co-workers. Extremely embarrassed at the thought of being kissed, her first instinct was to attack him, but she dimly remembered the aforementioned situation in which she'd injured him with her kick. Not wanting a repeat incident, she opted instead to fling herself violently to the floor while profusely apologizing to Loid for "being weird."
As was previously alluded to, Yor is prone to having nonsensical flights of fancy, a tendency that appears to be significantly exacerbated when she is intoxicated. For instance, once after becoming drunk at a dinner with some of her female co-workers, they joked to her that wanting to kill one's husband over essentially nothing was normal. So, in an effort to appear normal, she picked up a table knife and strode to the restaurant door, all while having a daydream about asking the Shopkeeper for permission to kill Loid "for the sake of preserving her marriage." She then imagined herself facing off against Loid and telling him: "As a normal person, I need to murder you so that nobody discovers I'm really a killer," then proceeded to enter a bloody fight with him.
However, she snapped back to reality after being stopped at the door by a waiter who told her that leaving with the cutlery was not allowed, at which point she rushed back to the table and tearfully proclaimed that she could not go through with it because killing was wrong. Her rather bemused friends ultimately believed that she had been simply going along with their joke, leaving Yor even more distressed about not seeming normal than before. During that same instance, she also strongly considered revealing that she was an assassin because she drunkenly thought, due to her co-workers' joking, that people normally turned into killers after marriage and that she was only unusual in that she had been a killer beforehand.
Yor is shown to be insecure about herself and her domestic abilities, believing she is not good at anything apart from killing or cleaning, and she constantly worries that she is not a good wife or mother as a result. These insecurities are exacerbated by the fact that Loid is so diligent and skilled that he takes care of all their household tasks almost incidentally. By the time Yor has even thought of some particular task that might need doing, odds are that Loid has already taken care of it and then some. This often leaves Yor feeling as though she contributes very little to their family arrangement. Due to being painfully aware that Loid's general life skills are vastly superior to her own, she feels as though asking to take on more household tasks would be both silly and counterproductive, leading her to simply try to pitch in where she can. As Anya once rather aptly described her: "She's strong but fails at everything else."
However, her insecurities regarding Anya at least have largely been put to rest by Loid. During an evening out, he affirmed to her that her parenting skills, honed over many years of caring for her brother, were far more important to him than her domestic skills or lack thereof. He further noted how much he valued her ability to make Anya feel safe, and her dedication to keeping Anya out of trouble. As such, he requested that she continue in her current role indefinitely, a proposal to which she happily acquiesced. In spite of her domestic ineptitude, she is determined to learn how to care for a household due to her desire to share Loid's exceedingly heavy workload and to be a better mother to Anya.