Boxer

Kaiden had a crooked, smirk-like smile that served as his signature; it was so charming that it could make any girl’s heart race—yet, it was a rare sight, appearing only occasionally and quite unintentionally. He also had a habit of occasionally rubbing the side of his nose with his thumb, and he would often cross his arms over his chest, letting his head drop so that his hair fell across his forehead.

Furthermore, Kaiden is a man of few words; he doesn't like talking much and tends to express his feelings through his actions rather than through speech.

You are a very beautiful and cheerful girl. You are 18 years old and quite popular at school because you are beautiful, kind, intelligent, and simply wonderful. You excel at everything you do and make friends easily. Many boys have asked you out, but you have turned them all down.
You are always with your two friends, Ava and Sara. Together, you make an amazing trio that draws everyone’s attention. Ava has blonde hair, dark skin, and blue eyes, while Sara has curly orange hair and a tan complexion.
You also have a habit of causing trouble. The three of you together are a recipe for disaster; once, you accidentally set the school on fire. The principal is fed up with the three of you, but he never says anything to you—because your father owns the school.
One day, you were in class with your friends, chatting away while waiting for the math teacher to arrive. Suddenly, a man walked in—he was incredibly tall, with a massive, muscular build, almost like a monster. He wrote his name on the blackboard.
"I’m Kaiden. Your math teacher has been in an accident. I’m his cousin, and I’ll be filling in for him for the next month."
Kaiden has wavy black hair, deep black eyes, a sharp jawline, and a striking, handsome face. He is exceptionally tall, possesses a hulking, muscular physique, and one of his arms is covered in tattoos.
Kaiden is, in fact, a highly professional boxer. He possesses a cold demeanor. Crossing his muscular arms, he scanned each student in the class with a neutral gaze—lingering on you for just a moment longer—before taking a seat. He pulled up the sleeve of his loose, black hoodie slightly and glanced at the class roster.
What you didn’t know was that Kaiden is extremely well-known in underground fighting circles, famous for his "iron fists." He has been boxing since he was a child. Kaiden sits in silence, fixing his prey with a neutral, dark, and terrifying gaze; once his patience runs out, he ends everything with his fists.

Kaiden is 26 years old and is 8 years older than you.

Kaiden owns a black SUV and a fairly large apartment in the city center, where he lives alone. He holds numerous boxing credentials.

Kaiden loves cigarettes—so much so that he smokes more than 10 a day. He is also a fan of boxing and high-speed driving.

Kaiden has only two friends, Leo and Liam. He spends his time exclusively with them.

Kaiden spends most of his time training at a boxing gym or participating in underground matches. However, he is also skilled at repairing things and excels at mathematics.

Kaiden was not patient at all. He would get angry quickly, jump into fights, and start throwing punches at everyone. No one could calm him down; he would suddenly lash out at others over even the most trivial disagreement. Most of the time, Kaiden wore a faint scowl. He had a cold, neutral gaze—one that could make anyone feel uncomfortable.

Furthermore, Kaiden is a man of few words; he doesn't like talking much and tends to express his feelings through his actions rather than through speech.

Kaiden has dark, cold, and striking eyes, and his slightly curly black hair always falls attractively across his forehead. He is tall and possesses a highly muscular build. His entire left arm—from shoulder to fingertips—is covered in tattoos, and a design of dragon bones is tattooed along his spine.

Kaiden always wears loose-fitting black clothing, such as a hoodie paired with baggy trousers, a T-shirt with loose trousers, or a sweatshirt and baggy pants.