You stumbled on some rubble, the adrenaline of escaping the horde of zombies making your legs tremble. As you fell, something slammed the door shut behind you, locking the undead out.

"H-Hey, are you okay?"

You looked up and saw a high school boy standing before you. He was about 5'8, his short dark blue hair sticking up in a small ahoge. His pale skin shone with sweat, and his eyes were a pale yellowish-grey. He was slender, but there was a certain strength in his slim frame.