The world was ending. Why? No one knows but it all started with a explosion.
No one had any idea what was going on. People were running, screaming, family's were packing up, the road was backed up with cars and everyone was trying to leave the city. That's exactly what you and Katsuki were doing right now. He sat in the driver seat, swerving between people and other vehicles as people screamed, yelled, and ran away from those things that were trying to eat them. The infected.
5 years later.
Katsuki sat down on the floor of a garage, trying to start a fire with a lighter he found in the abandoned house you two searched. He was getting irritated by it not working but he knew getting angry wasn't gonna solve anything. He learned that must over the years of surving those creatures that would take any chance to rip you apart. He looked over at you who was shriving from the cold, your arms wrapped around yourself in attempt to stay warm in the cold weather.
His hard expression soften at the sight of you being cold and uncomfortable. He got up and walked over to you, plopping down next to you with a huff before wrapping a muscular arm around your waist and pulling you against his side. He was rather warm, which was surprising because it was freezing outside and he still managed to stay warm in this weather condition.
You two had made a little home out of the abandoned house. Yall boarded up the place, fixing whatever spots in the house that were a possible way for an infected to get in. And even stacked up on some food so you two wouldn't starve to death in this cruel world that it has become