Y/N is a 19-year-old from Utah who has already completed college unusually young, earning degrees in agribusiness/cattle production and religious studies, along with a teaching certification and first-aid training. She is practical, stubborn, loyal, affectionate, and much more comfortable with people, business, history, agriculture, and religion than science or technology.She loves old-fashioned things: 1930s–2010s music, swing dancing, diners, drive-ins, vintage clothes, and big-band music.She plays trombone and dreams of becoming a genuinely good “saucy tromboner,” especially at swing and jazz. She knows swing, Charleston, and waltz and loves dancing.Wanting independence and a fresh start, Y/N moves from Utah to New York for a Stark Industries business internship. Tony Stark interviews her himself and gives her a one-week trial.She arrives expecting a normal corporate internship and instead gets thrown into the orbit of the Avengers.Peter Parker is one of the first people she meets. He approaches her outside and jokes that she looks like she has been sentenced to prison. He introduces himself, and their friendship develops naturally.Peter becomes her chaotic younger-friend figure, while she becomes someone he can actually talk to. She calls him “Web Head,” “Web Boy,” and eventually “Bugle Boy,” the last nickname coming from her favorite song, “Boogie Woogie Bugle Boy.”It predates any romance between them.Tony initially sees Y/N as an amusingly competent business intern who somehow managed to end up surrounded by superheroes while having almost no interest in science.He tests her constantly, eventually realizing she is genuinely good at operations, people, planning, and business. Their relationship grows from employer and intern into a found-family bond. She calls him “Tin Man” or “Tin Can,” and Tony becomes one of the people who notices when she is quietly pushing herself too hard or trying to make herself smaller for other people.Steve Rogers initially gets her respect more than familiarity. Because of her upbringing and respect for rank, she calls him “Captain Rogers” for a long time. Their friendship grows slowly. Steve appreciates her old-fashioned values and love of history, while she appreciates his steadiness. They dance together occasionally, completely platonically, and Steve is an excellent partner. Eventually they become genuine equals and close friends rather than “Captain and intern.”Steve can become a romantic possibility because Y/N could develop a crush on him and even ask him out first, especially if he hesitates too long out of responsibility and caution.Bucky Barnes begins more guarded. Y/N initially calls him “Sergeant Barnes,” partly from respect and partly because she does not know how close he wants her to be.Eventually Bucky tells her to just call him Bucky. Their friendship develops through dry humor, shared quiet moments, dancing, and Bucky recognizing that Y/N’s affection is genuine rather than invasive. He especially understands her need for direct communication: if he wants space, he says so; if he wants her near, he tells her.Y/N is extremely affectionate and loves cuddling, especially during movies. Bucky eventually becomes the person she naturally curls against.He occasionally pulls her into his lap while teasing Steve with something like, “I got the girl.” Y/N pretends to be offended while continuing to cuddle him: “I am still mad at you.” “I know.” “This does not mean I’ve forgiven you.” “Sure.” She eventually realizes she likes when Bucky calls her “doll,” despite historically disliking the nickname.He notices immediately and absolutely abuses the knowledge.Her stubborn independence also creates running jokes.She can open stubborn jars herself, but sometimes barely tries before handing one to Bucky because she enjoys letting him help. Steve eventually catches on. “You could have opened that.” “I could have.” “You barely tried.” “I tried once.” Bucky simply opens it and says, “She tried.” Steve: “You’re enabling her.” Bucky: “Yep.”Y/N also has an ongoing feud with rate problems. Peter, Tony, Steve, and Bucky once watch her stare at a rate question and declare, “There’s minutes.” Steve suggests converting units. Bucky asks, “What are units?” Y/N immediately says, “Captain Rogers… I don’t like where this is going.” Loki eventually joins the conversation, writes out the answer, and concludes that the Midgardian has made her position clear. Y/N decides Loki is officially her favorite person for that day. Tony is horrified.Her friendship with Natasha develops through mutual observation and dry humor.Natasha notices Y/N’s tendency to quietly withdraw when overwhelmed and learns that her ability to make herself look “fine” is not the same thing as actually being fine.Clint bonds with her through practical competence, sarcasm, and ridiculous nicknames like “Bird Boy.”Thor enjoys her enthusiasm for mythology, while Loki is surprised that Y/N read Norse mythology as a child and actually remembers it. Their shared mythology jokes eventually become a private language. April Fools becomes especially dangerous whenever Loki and Y/N team up.Music becomes part of compound life.Y/N loves swing and big-band music and sometimes hums while working. She is reluctant to play trombone in front of Steve or Bucky until she believes she is at least 90% good because she hears every mistake herself.Eventually they hear her playing anyway. Steve genuinely enjoys it, while Bucky quietly becomes one of her biggest supporters.Peter eventually becomes more than a friend.Their relationship is sincere and affectionate, but difficult. Y/N loves Peter deeply and is willing to work through problems rather than abandon him.Peter’s anxiety makes him worry that he is hurting her or holding her back. Y/N’s tendency to give people space when she thinks they need it accidentally reinforces his fear that he has done something wrong.They begin unintentionally feeding each other’s insecurities.Y/N believes relationships are problems to solve, not disposable things. When Peter eventually breaks up with her “for her sake,” she is devastated.She tells him, “Why are you refusing to believe me when I say I choose you?” Peter genuinely believes she is sacrificing herself rather than choosing him.Neither of them stops loving the other immediately; fear simply creates behaviors that eventually seem to prove the fears were justified.Afterward, Y/N needs significant distance. She does not want Peter to lose his support system, so she gradually removes herself from the Avengers and becomes “too busy.”The others eventually realize she is trying to protect him by disappearing and remind her that Peter gets to decide who stays in his life too. Healing takes a long time.Eventually Y/N and Peter become friends again, but only after the romantic wound has genuinely healed. She can joke with him again, call him Bugle Boy, and care about him without secretly hoping to get him back.Eventually, Bucky becomes the person Y/N chooses.Their relationship is built on directness, trust, affection, and mutual independence. Bucky asks her out first rather than making her guess. She realizes that while Steve was someone she could absolutely fall for, Bucky actually chose her openly—and she chooses him back.Bucky understands that loving someone from the past does not erase their importance.When Y/N worries that remembering Peter means something is wrong with her relationship, Bucky tells her, in his own way, that Peter is part of her past and he is her present.Y/N periodically asks whether their friendship with Steve or Peter bothers him. Bucky answers honestly, and she learns to believe the answer instead of repeatedly searching for hidden meanings.Bucky’s proposal is a complete surprise because Y/N specifically does not want to know it is coming. He asks her father for his blessing first.Her father says yes; her mother is considerably less enthusiastic. Bucky later jokes, “I’m not marrying your mother.”The proposal leaves Y/N crying, laughing, and jumping around in disbelief. Steve secretly records it, intending to use the footage in their wedding slideshow.The wedding is supposed to be small.It absolutely does not remain small. Between family, church friends, the Avengers, friends from different parts of Y/N’s life, and Bucky’s connections, it grows to roughly 400 people. Y/N cries so much walking down the aisle with her father that her makeup starts running.Half of her wants to run away from the overwhelming crowd; the other half wants to sprint straight toward Bucky. Once she reaches him, none of the makeup matters to him.Their vows are simple and sincere: they choose each other, every day, not because life will always be easy but because they intend to face it together.The reception is filled with swing and big-band music, dancing, laughter, family chaos, and the Avengers behaving exactly as badly as expected. Y/N dances with Bucky, and later with Steve. Bucky is not threatened by it; he simply eventually steals her back for the next dance.The wedding slideshow includes Steve’s secret recording of the proposal.Y/N later complains that she cried so much that half her wedding pictures are ruined. Bucky responds, “So you want to marry me again?” She considers it and admits, “That’s actually a good solution.”Their honeymoon is the opposite of the enormous wedding: quiet, intimate, full of food, travel, dancing, cuddling, laughter, and ordinary moments. The larger story is not about becoming a superhero Y/N remains completely human.She simply enters a world she never expected to belong to and slowly builds genuine relationships within it.The final arc is stranger → intern → acquaintance → friend → trusted friend → found family → romance → engagement → marriage → ordinary life together. The Avengers never replace the life Y/N came from; they become another family she chooses, while Bucky becomes the person she chooses to build her future with.