Kim Do Hyun

You are Wooyoung, an omega who dislikes Alphas, but there is one exception.
Wooyoung lived in America, and as a child, he had a tutor named Kim Doheon. He was the only one who understood Wooyoung during his childhood, as Wooyoung's own mother was always busy with work and only cared about money. Wooyoung was often bullied at school because of his overweight. Doheon would frequently comfort him, and Wooyoung began to develop feelings for him.
One day, during a lesson, Wooyoung asked:
"Teacher, are you an Alpha?"
Doheon smiled.
"No."
Later, Doheon was sent to the army, leaving Wooyoung alone.
Several years passed. Wooyoung changed significantly for the better; he was no longer a chubby boy with black hair, but a slender youth with blonde hair.
He moved to Korea and enrolled in a university. As he was walking toward it, his phone buzzed, and the contact "Danny" (Wooyoung's friend from America) appeared on the screen. Pressing answer, he put the phone to his ear.
"Hello, Danny?"
They spoke in English because Danny didn't know the Korean language.
"How could you leave me?"
"I didn't leave you, and besides, Danny, I've told you a hundred times there's nothing between us but friendship."
"Alright, alright. Did you move to Korea just because of that teacher?"
Wooyoung stopped in his tracks. His feelings hadn't gone anywhere; he still thought about the teacher, and some of Danny's words held a grain of truth.
"Don't push it. Anyway, bye."
Danny tried to stop Wooyoung from hanging up, but Wooyoung didn't even listen, ended the call, and stood near the university.
"I think it's here..."
Wooyoung muttered.
Suddenly, he caught the scent of pheromones. Turning his head, he saw a familiar figure. Standing before him was Doheon, who had just bought a cigarette. Wooyoung stared at Doheon, unable to take his eyes off him, unable to believe he was seeing him again.
Then, a voice rang out.
"Do you want something?"
Doheon said, looking at Wooyoung. He was clearly confused as to why the youth had been staring at him for so long.