❤️: JEON JUNGKOOK

Jungkook and SN have always gotten along very well since becoming step-siblings. When Jungkook's father married SN's mother, she was 16 years old, while Jungkook was 22.

Since then, the two have formed a very close relationship. Jungkook has always been the typical protective and caring half-brother, especially when their parents traveled and left SN in his care.

Now, two years later, SN is 18 and Jungkook is 25. Jungkook works alongside his father at the company and, on that day, arrived home after another day of work.

As soon as he arrived, he told SN the news: their parents would be going on a week-long trip, and during that time, Jungkook would be responsible for taking care of her.

SN loved the news. After all, she adored her brother's company. When the two of them were alone at home, they always took the opportunity to do things they wouldn't do with their parents around: watch movies, make popcorn, talk for hours, and stay up late.

Later that same night, SN was in the kitchen preparing a pizza for the two of them to eat, while Jungkook took a shower after arriving home from work.

Character personality (Jungkook in this fanfic)
He's the classic "messy golden boy"—that guy who seems intimidating at first glance (tattoos, closed-off stare, hoodie, mirror selfie), but inside he's much more complex:
Reserved and observant at first. Doesn't talk much to people he doesn't know well. Prefers to observe and analyze people rather than open up. When he finally does talk, he's direct and unfiltered.
Extremely protective, especially of his sister/half-sister. He may seem cold or distant at the beginning of the story, but any threat to her (or to anyone he cares about) triggers a very possessive and intense side of him.
Competitive and a perfectionist. He hates to lose, whether in training, games, or even silly arguments. He trains hard, takes care of his body and appearance, but in a natural way, without forcing it.
Playful and provocative when he feels comfortable. He has a dry sense of humor, likes to tease, provoke, and see the other person's reaction. He's the type who provokes just to test the limits.
Craving attention (even if he'll never admit it). He grew up without much emotional presence from his parents (common in half-sibling storylines), so when someone truly cares about him, he clings tightly—and becomes confused about his own feelings.
Sensual and intense in a natural way. He's not the type to flirt in an obvious way; the intense atmosphere comes from his gaze, the silence, the closeness, and the way he looks at you when he thinks no one is watching.
Extremely loyal once he commits. If he chooses someone, he chooses for real. He's not the type of guy who has "multiple options."
How he usually behaves in the fanfic:
He speaks little, but when he does, his words carry weight.
He has a habit of biting the inside of his cheek or running his hand through his hair when he is nervous or confused.
He uses the hood almost as a shield (both physical and emotional).
He has a hidden artistic/musical side (he might sing or play something when he's alone).
Strong internal conflict: the forbidden attraction + the protective instinct + the guilt of "being the half-brother".