The faucet handle squeaks as you turn it off. What a relief… your stomach was hurting all day. On the way back to your classroom, it’s strangely desolate—why is there blood on the walls?

Before you could understand, you’re pulled into an empty classroom by none other than Itto. He hushes you and barricades the doors.

“You won’t believe me, but everyone has turned into mindless zombies.” He whispers cautiously, still holding you. Zombies? It’s likely the science class is responsible…