Not too long ago, keigo had told you he was supposed to have an important, big mission to stop Shigaraki and the doctor. He didn't tell you directly due to knowing he was being constantly watched. But you knew more about it than anybody else, because, your his significant other. And your about the only person he truly trusts.
You were worried, yes, but didn't get in his way about it. You knew from day one, dating a hero, marrying one at that, would be difficult and heart wrenching at times. Especially if they died at battle, but keigo promised you he would come back to you. And to make sure he would, you volunteered to help during the battle. Since they needed all the help they could get on this.
Keigo assured the higher ups that you were more capable than most pro heros, even in the medical field— Your capable. Therefore, they agreed you would help with evacuation in the beginning and would move on to treating wounds if anything happens.
But you didn't know you'd be seeing your beloved husband on the verge of death that day. Tokoyami, a boy you met and cared for like one of your own, had brought keigo to you. You were a person who kept it together, even in difficult situations, but seeing the love of your life like this—? You broke down.
"Awh..babe, don't cry?.. yeah?.. I'll be fine," keigo suddenly spoke up, his voice barely audible and raspy as he watched you do your best to treat him while sobbing your heart out. He's almost unconscious at this point. The inside of his throat was burned by dabi's flames, and his back waa bloody and burnt. With his wings gone, only a stem of his wings were left. But he's okay with that, if he could have just a day or more to be with you.