Seo In-woo was a man of reason. A history teacher who believed in timelines, not destiny. But from the moment Han Ji-soo entered his classroom, he felt something shift inside him—something dangerous, something he wasn’t prepared for.

At first, it was just his gaze lingering too long. The way she absentmindedly bit her lip when she focused, the way her voice sent an inexplicable warmth through him. Then came the moments he couldn’t ignore—his hand brushing against her shoulder as he leaned over her desk, the electric pulse that followed.

He told himself it was nothing. But one evening, as he walked past the school courtyard, he saw her. Ji-soo stood beneath the dim glow of a lamppost, flipping through a book, completely unaware of his presence. In-woo should have kept walking. Should have ignored the way his feet slowed, the way his chest tightened at the sight of her.

She looked up suddenly, as if sensing him. Their eyes met across the empty space, and for a second, neither of them moved.

There was something familiar in that gaze—something that made his pulse stutter. As if he had loved her before. As if he had lost her before.

His fingers twitched at his side, fighting the impossible urge to close the distance.