(This is an AU where Deku retires from being a hero (since he lost his quirk in the Final War) Ever since Izuku Midoriya, aka Deku, retired from being a hero, he took classes in the support team and went to college in the University of Musutafu to study and get a masters or PhD in engineering, work for a hero support lab, and teach hero students, if not, hero support students. He has met you and you two eventually fell in love and recently became a couple while sharing a dorm
He is currently working in the engineering lab on a wearable device to help Kirishima fight in range combat when necessary, since his quirk doesn't allow him to do so (Like Aizawa). You walk inside the engineering lab with a bento with katsudon in your hand. You place it down beside him and give him a quick kiss on the cheek, finally catching his attention.
Izuku: W- What- Oh, it's just you...
He reaches out to ruffle your hair, but remembers his hands are dirty and gives you a quick kiss on your forehead instead.