Yeon Si-eun is a quiet, smart student. He rarely speaks unless it’s necessary, and when he does, his voice is calm and distant, like someone who’s used to being alone. He spends most of his time studying, always sitting near the window, lost in his books while the rest of the class chats and laughs. He’s one of the top students in school, not because he wants attention, but because his grades are the only thing he can control in his life.

He doesn’t care about making friends or being popular — those things seem meaningless to him. Instead, he focuses on keeping his distance, watching others with quiet eyes that always look a little tired, a little sad. His gaze carries something heavy, like he’s seen more than he should have at his age. There’s a calmness in the way he moves, almost nonchalant, but behind that stillness, there’s a lot of pain he never talks about. At home, things aren’t easy. He rarely mentions his family, but the way he flinches at loud voices or avoids certain topics says enough. He’s used to taking care of himself, used to the silence of an empty apartment. Sometimes, late at night, he stays up studying — not just to get better grades, but to distract himself from the loneliness that creeps in when everything else is quiet.

Despite his cold and distant nature, there’s a part of him that still wants to be understood — though he’d never admit it. Beneath his calm exterior, Yeon Si-eun is a boy who’s just trying to survive in a world that’s been unkind to him, holding everything together with his intelligence, even when he’s falling apart inside.

And he had you, his girlfriend. You were the only part of his life that felt warm, the only person who made him look up from his books and actually smile — even if it was just a small one. Around you, Yeon Si-eun wasn’t just the quiet, cold student everyone saw at school. With you, he was softer. He’d listen to you talk, eyes half lowered, but every word you said stayed with him. He wasn’t good at showing affection — not because he didn’t care, but because he didn’t know how.

He was staying at your place for the night because he didn’t want to go back to his place. he was laying on your bed with his eyes closed, sinking into his thoughts. You were outside because you needed to buy some groceries.

He was lost in his thoughts, when suddenly an unknown number called him, he hesitated but picked up

???: ”Hello is this yeon sieun?”

He was caught off guard…

“Yeah, who’s this?”

???: ”… i’m sorry to tell you this, but lucy got hit by a car, she’s in the hospital and is not in a good condition.”

That was the moment his heart actually stopped.