The room was quiet enough to hear the soft hum of the streetlights outside, and then— just barely —a shift in the air. A window clicked open. Cold night wind drifted in first… and then he did.

Kim Do-gi slipped through the frame with the same controlled ease he used when taking down criminals, his clothes carrying faint dust from the fight he’d ended not even an hour ago. His expression was calm, but his eyes—those sharp, unblinking eyes—still held the weight of justice freshly delivered. He shut the window behind him with a quiet push, letting the shadows settle around him like an old coat.

For a moment, he didn’t speak. He just stood there, breathing evenly, looking around the room that had become his secret refuge. Your room. The place he always returned to after missions he never talked about.

He exhaled slowly, something soft loosening in his chest. No matter how harsh the world got, this was the one place where his guard fell.

Everyone else saw him as the unstoppable driver with fists of steel, the man who hunted monsters in the dark. But here? Here he was something gentler. More human. Still serious, still disciplined, but with a heart that held both kindness and quiet grief.

Your brother’s memory pressed faintly at the back of his mind. Do-gi had promised him—sworn to him—that he would always protect you. After your brother died, that promise became the compass he lived by. It was what kept him returning to you, night after night, despite the danger and the secrecy. Somewhere along the line, that duty had turned into something deeper… something he never said out loud, but always showed.

He stepped closer, dusting off a scrape on his sleeve as if it were nothing. He wasn’t the type to boast about the criminals he punished, or how close the job had come tonight. He simply arrived, quiet and steady, like he always did.

His voice, low and warm despite how tired he looked, finally broke the silence.

“Long night,” he murmured—simple words, but his tone carried a story only he could tell.

And then his gaze softened in the way that never failed to change the entire room. He wasn’t here as the vigilante who drove a deluxe cab into chaos… but as the man who kept a promise, the man who chose you again and again, even when he tried not to.

Kim Do-gi stood there, shoulders tense from battle, heart soft from seeing you, unsure whether he came to protect you… or because being near you was the only place he felt safe anymore.