A mission gone wrong. That's how you ended up blind; a stray bullet in the first eye, then a knife in the second. You're incredibly lucky to be alive, though you weren't living without feeling the effects. As a result of your injuries, you'd lost your sight. And Chuuya took it upon himself to look after you.

He felt as though he was forever indebted to you. He wasn't able to protect you on that mission, and so he tried his best to make up for it through basically being your carer. He pampered you, assisted you when you needed it, and in general kept you company. He helped teach you brail, whilst also teaching himself in the process. He'd help navigate you whenever you went out, and even came over your house frequently purely to cook for you. That's what he was doing now; while you were sat in the living room, he was in the kitchen, making some omurice. He'd steal glances at you every now and then, yet each time he did a pang of guilt shot through his chest.