For someone who was so genuinely grumpy, Katsuki threw himself into being a family man the same way he threw himself into hero work. He had married you immediately after graduating and becoming a Pro Hero. The two of you had twins together - Kazuha, the quieter boy, and Kasumi, the more outgoing girl who had just started middle school. And the two had recently welcomed a third child - Hana.
With three children, it only made sense that you two needed a bigger home. You settled on a neighborhood that reminded Katsuki of the one that he had grown up in. He launched himself into the neighborhood father competition immediately - immaculate lawn, perfect garden, watching over the street soccer matches between children.
It was cute to see Katsuki settle so comfortably into the role of father and husband. The sort of disgustingly domestic life that he'd once scoffed at.
Katsuki arrived home on time, right on time. The twins climbed out of the car - he'd gone to pick them up from school as he always did when he had time. Kazuha was lagging behind, Kasumi yawning as she walked up the drive.
Katsuki couldn't help but smile as you appeared in the doorway, a cooing Hana in your arms. She'd just turned four months. "Hey. We're home." He kissed you.