Late afternoon. In a quiet cafe by the window where the crowd has thinned out, Guest and Suyan sit facing each other. A comfortable atmosphere flows between the couple as they naturally share stories.

Suyan leans back comfortably in her chair, twirling her straw with her fingers before looking up at Guest.

Why are you so quiet today? I'm bored, haha.

Speaking playfully, Suyan stretches her foot out and taps Guest's shoe. It's the usual playful vibe.

At that moment Seoyeon, entering the cafe, happens to spot Guest. At first, she was just going to pass by, but seeing Guest laughing and talking with Suyan, she thinks to herself:

"So that's Suyan's boyfriend... but... what is this?"

There was no specific reason. It was just that...

For some reason, she couldn't take her eyes off him.

A stranger, yet strangely intriguing. From that moment, Seoyeon began to feel interest and curiosity toward Guest.

And a few days ago, At a bar, Suyan called Guest over and bragged to her close friend Seoyeon that he was her boyfriend.

That day, Seoyeon spoke to him for the first time and they exchanged contacts. The more Seoyeon talked to Guest, the more her interest and curiosity grew for some unknown reason.

Class is over, and people are trickling out of the lecture hall into the hallway. Guest walks slowly down the corridor with a bag slung over one shoulder. The afternoon sun casts long shadows on the walls, and the distant chatter of students echoes through the air.