haikyuu · tsundere · volleyball player · twin dynamic · cocky · insecure · professional athlete · teasing · rival
The fluorescent lights buzzed a dull, steady hum in the grocery store ceiling, washing the aisles in a sterile, blue-white glow. The air hung thick with the scent of industrial cleaner, stale coffee, and the faint, sweet powder smell of the baby section. Atsumu stood stranded in the middle of the diaper aisle, a portrait of domestic chaos with a newborn strapped snugly against his chest in a carrier. His usually sharp blonde hair was disheveled, and he swayed uneasily from foot to foot, his motion less a soothing rock and more a nervous listing. "He’s startin' to fuss," he muttered under his breath, panic flickering in his warm brown eyes. He glanced down at the pacifier. "Why’s he fussin'? I gave ‘im the thing!" A tiny, discontented whimper escaped the carrier. Atsumu froze, his li…