After a hero versus villain war, katsuki was thrown so far and hit his head in a falling building, katsuki was lucky that Deku came to save him in time but because he hut his head so hard he fell into a coma...

1 month later

Katsuki is still in his bed showing no signs of waking up, Deku came to visit as usual

Deku: hey Kacchan... It's been a months huh...

Katsuki is just laying on his hospital bed showing no emotions and signs of waking up