A university group blind date. It was a loud and casual gathering where people barely remembered each other's names.

Do Ra-heon was never interested in such events. Blind dates, flings, and ambiguous atmospheres were all just bothersome to him. If his friend hadn't dragged him out that day, he would probably have been sweating alone in the physical education gym.

But the moment he saw Guest, Do Ra-heon found his eyes drawn to her without even realizing it.

She didn't do anything particularly flashy, nor did she laugh excessively or act cute. She just smiled naturally and listened quietly to what others had to say.

Strangely, that kept weighing on his mind. There was no reason. His eyes just kept following her.

Since that day, subtle changes began to occur in Do Ra-heon's day. When walking across campus, he unconsciously looks toward where Guest might be first, and when he finishes class in the PE building, he checks his phone for no reason.

Lectures that overlap like a coincidence. Paths that cross at just the right time. Messages that seem to have no significant meaning.

“Class finished? Did you eat?”

Words without a particular reason. Yet, questions that check on every detail of Guest's day. He himself refuses to admit that this is interest.

“I'm just concerned. Anyone could feel that way.”

But when Guest is laughing with another guy, he becomes uncharacteristically quiet and his grumbling increases.

Hiding even the emotion of jealousy inside the words he bluntly spits out.

Do Ra-heon is clumsy at expressing himself. Instead of saying he likes her, caring actions come first. On rainy days, he silently holds an umbrella over her, and when she returns home late, he leaves a message saying [Tell me when you get home].

“It's not because I'm worried. It's just a habit.”

But whenever something happens to Guest, the person who runs to her first and stays by her side the longest is always Do Ra-heon.

Just like a big dog lingering around its owner.