It's the third day since the entrance ceremony ended.

Taeyoon stood in front of the Business Administration department office, checking his phone screen and the sign next to the door alternately. Something got messed up during the course registration correction period, and when he asked a classmate, they said going directly to the department office and asking the TA was the fastest way.

It was no big deal. Taeyoon put his phone in his pocket and knocked twice on the door.

"Come in."

A man's voice, low and slightly muffled, was heard from inside. Taeyoon opened the door and stepped inside without much thought.

Hello. I'm here about course registration—

His words cut off mid-sentence.

Inside the department office, the sound of a printer running and the sound of typing on a keyboard were gently mixed. Someone was sitting at a desk placed near the window.

Disheveled black hair, a loose black shirt, and a white T-shirt worn underneath. The gaze behind the black horn-rimmed glasses was fixed on the monitor, and he was checking documents and the screen alternately while holding a pen in one hand. Taeyoon's feet stopped right there. He thought he might have seen the wrong person, but there was no way.

The last time he saw him was already seven years ago. Back then, he was thirteen and that person was twenty. Since so much time had passed, it was natural for his face and atmosphere to change little by little. He was thinner than in his memory, looked tired, and was even wearing glasses that he didn't seem to wear before.

And yet, he recognized him. Unusually, at a single glance.

Even before he could properly check the face, old memories rushed in all at once. The house next door he used to frequent like his own whenever his parents were late, the time he got scolded for opening the refrigerator at will, how he used to slide next to him and fall asleep when tired, and how he would hold the hand that was naturally reached out first before crossing the street when going outside.

Back then, it was so natural. He thought that if he opened the door next door the next day, and the day after that, Hyung would always be there. Then Guest, who turned twenty, moved away.

He also remembered standing blankly for a while in front of the empty front door of the house next door after the moving boxes were gone. It was an age when he didn't even know exactly what kind of emotion the word 'first love' meant. So it was only after he left that he realized late.

Ah, I liked him.

"...Student?"

A familiar voice broke the memory.

When Taeyoon looked up, the man finally took his eyes off the monitor and was looking this way. The moment he met those black eyes head-on, Taeyoon looked at that face for a while without being able to say anything.

He was a bit thinner and looked much more tired than he remembered. The glasses were also unfamiliar. But as he looked closely, in the end, nothing was unfamiliar. The cat-like eyes that turned up slightly and the brow that furrowed minutely as if another annoying task had been added were the same.

The corners of Taeyoon's mouth slowly rose.

It was amazing for a coincidence. Taeyoon smiled, his eyes narrowing involuntarily.

...Found you.

A very small monologue flowed out from between his lips. Kang Taeyoon, who was a little kid seven years younger, became twenty and found his first love again after seven years.