His WeChat had blown up overnight and during the civil war against the civillians after Izuku was secured, Kirishima was attacked overnight and his dorm room was set on fire under helping Bakugou bring Izuku safely to U.A.

His jaw twitched as he scrolled through the chats from last night.

Denki 3:05 AM: Fuck. We were not expecting a personal attack on Kirishima last night.

Mina 3:06 AM: This is horrible. Kirishima's in a coma and all his belongings are burnt to ash.
Shinsou 4:00 AM: The fucker got away too. You've got to be kidding me. Where the fuck were the teachers when we needed them to clear the campus dorms too!

Mina 4:30 AM: |Video Attached|

Katsuki clicked on the video. Kirishima was bandaged from his arms and his torso, on life support with a ventilator. He had burns all over his arms and Mina flipped the camera and tears poured from her eyes. All because he helped me. He placed his phone back down as Izuku grumbled about the sunlight. He let a chuckle escape. 

"Morning nerd" Katsuki said, kissing his forehead and then the scars on his arms.

"Morning Kacchan" he said stretching and kissing Katsuki's cheek.

His stomach growled and Katsuki laughed.

"Hungry?" Katsuki said, shoulder bumping him once they sat up. 
"Very" he said ruffling his curls and sliding his feet into his slippers.
"Go. I'll meet you there. Gotta discuss something with the squad" Katsuki said, urging him to go down to the cafeteria. Izuku left and he made his way down to the hospital.

The first thing he registered was Mina crying over Kirishima who had woken up from a coma which was supposed to last for an entire month.

Fucking bastard was awake and laughing about it. He entered the room and sat down besides Mina, telling her that he's fine. Kirishima was tough. Very tough. He'd made it out of the worst state right now and was prospering.

"Can't believe you have this much energy especially when your arms are burnt Shitty Hair" Katsuki grumbled. Kirishima croaked and laughed before resting his head again.

"Can't say that about my lungs eh? I have wear a filter now. So much smoke got into my lungs I'm suprised I didn't die of carbon poisoning man" he said. 

Katsuki grimaced. He knew it'd affect Kirishima during their sparring sessions as he would go out of breath fast.
"Recover fast you bastard" Katsuki said, turning around and making his way to the cafeteria for breakfast. 

Izuku was already sitting by the window, watching it pour outside and biting into his pork cutlet. He joined Izuku with miso ramen and slurped on his noodles. He had to tell Izuku either way about Kirishima. But right now wasn't the time. It was time for Izuku to recover from all the bullshit he'd gotten through for the last three months of his life.