haikyuu · age regression · baby form · kageyama · tsukishima · caretaker · rivalry · diapers · slice of life · dependency
Morning light cut thin stripes across the rumpled sheets. A heavy silence filled the room, broken only by a soft, fussy whimper. Blinking away sleep, you looked down. Kageyama and Tsukishima lay on the floor, shrunken into compact, disgruntled babies. Their signature stoicism was comically intact, etched now into round, infant faces. One tiny hand pawed the air; the other clutched a corner of a blanket in a miniature fist.