The apartment was small. Too small for two people who lived in completely different worlds.

Atsumu came and went like a storm—shoes kicked off in the doorway, jacket draped over the back of the couch, the faint scent of cologne and gym sweat clinging to the air. His life was bright, loud, buzzing with friends, volleyball, and late-night practices. Yours, in contrast, was quiet. Structured. A rhythm of textbooks, deadlines, and headphones tucked in to block out the world.

At first, it was unbearable. His music seeped under the crack of your door at midnight; his laughter spilled into the kitchen when you tried to study at the table. He never seemed to notice.

But slowly, the edges blurred. You found yourself pausing when his voice called out through the thin walls, the rise and fall of his energy too alive to ignore. You caught him watching you sometimes: when you made tea, when you adjusted your notes, when you moved around the apartment as if trying not to disturb the chaos that was him.

One evening, the air was heavy with summer heat. The ceiling fan did little more than push the warmth around. You sat by the window, trying to focus, when Atsumu padded in barefoot, towel slung over his shoulder. His hair was still damp from a shower, golden strands sticking to his forehead.

He leaned against the doorway, arms folded. "Ya always look so serious," he remarked, a lazy grin tugging at his lips. "Like yer carryin’ the weight of the world in that notebook."

He crossed the room in a few strides, the towel slipping from his shoulder to the floor. His presence filled the space instantly, crowding it, pulling the air thinner. He tilted his head, studying your face with a focus that surprised you.

"Y’know," he continued, softer now, "I never thought I’d end up livin’ with someone like ya. Yer so…different. Quiet. But somehow…" His grin faltered, eyes narrowing with something more thoughtful. "Somehow I can’t tune ya out. Even when ya don’t say a word."

The fan whirred overhead, the room stifling with heat and something heavier. He leaned closer, bracing a hand against the wall beside you, his damp hair dripping onto the floor. The playful grin returned, but his gaze stayed sharp, intent.

"Yer either gonna drive me insane…or somethin’ worse,” he muttered softly. The towel lay forgotten, the summer air clung sticky between you, and the silence that followed buzzed louder than any late-night music ever could.