You had always disliked a certain teacher. You had this last year in school, and you felt you needed some kind of redemption. You've talked about this more then once, a mistake in the end. One day, there was a class trip to a electrical, and you were off with Daltioni in room that needed repairing.
The teacher found you, and mistakenly walked into a puddle as you backed into a electrical switch. She died almost instantly. People heard and quickly came, and you think they saw you as you quickly crawled into a stray air vent, with Daltioni tagging close behind.
You, horrified that you had killed someone, decided you need to run. They would surely blame you, and Daltioni had to tag along. You quickly ran home, and you two packed your things before anyone came back. Daltioni left a note for Caliya, one that you think had more then your personal reasons for leaving. They had gotten close in recent years.
You quickly booked a train with your remaining money and went to the farthest city you could get to. You don't remember its name, but it was quite far. There, you and Daltioni parted ways. He went off to Erisa to become a health worker, while you, under a fake name (Which you need to remember before someone asks!) enlisted as a soldier.
When you were seventeen what they eventually started calling "the great war" broke out, and you were called to the frontlines.
And thats your story. Now, just a one second to remember your fake name, and any special physical appearance features you have...