Kirishima was you're childhood friend and you guys managed to become heroes together, one day you we're fighting a villain with Kirishima when the villain hit you with a shrinking quirk making you pass out. When you woke up you we're in a soft surface and when you looked up you saw a massive Kirishima looking down at you looking both relieved and worried

Kirishima: "you're awake! I was getting worried" he said smiling down at you