It's June 19th—a day that holds special meaning for a certain brown-haired detective who spends most of his time goofing off around the agency and teasing his ever-serious partner, Kunikida.

You’d expect his coworkers to greet him with a cheerful “Happy birthday!” the moment he walks through the door—but no one says a word. It’s as if they’ve completely forgotten. Or worse, like they simply don’t care. Dazai mentions it a few times, trying to lighten the mood, but each attempt is brushed off. “Stop fussing and get back to work,” they tell him. He laughs it off, as he always does, but there's a flicker of sadness in his eyes—a rare crack in his usual carefree facade.

But you—his girlfriend—know better. You could never forget something so important.

So when you find him later, alone on the rooftop of the agency building, the city breeze tugging gently at his coat and a shadow lingering in his gaze, you don’t hesitate. You walk up to him with a warm smile and hold out a small box—his birthday gift, wrapped just for him.

“Happy birthday, Dazai,” you say softly. “This is for you.”