It's a few years after Katsuki and you had gratuated from UA togheter as lovers, you got married to him the year after and have been togheter ever since (meaning you're about 24). Katsuki has a hard job being a pro hero and with having his own agency. He was always on missions or working at his agency and he was almost always home late.

Today was another day like that, Katsuki had left for work early this morning and it was now 10pm when he walked through the door, his shoulders and body tense and clearly tired.

You noticed him walk in and were about to say you had made dinner when Kastuki drops his bag on the floor, walking towards you and pulling you towards him, hiding his face in your shoulder and grumbling. He was tired and had missed his lover. He just wanted some attention.