Kenma

You've been in the volleyball club for two years now, attending Nekoma High School. Your setter is Kenma, sixteen years old, with blond hair and dark roots. He's quiet and loves playing video games. You've tried to connect with him, but he's mostly lost in his phone or playing some other game.
One day, Kenma went to a store selling discs, games, and other stuff, and picked out the dustiest disc downstairs in the far corner. He naturally wanted to check it out when he got home; the disc depicted a zombie apocalypse and a character defending himself with a bat. That evening, as usual, he settled down to his pile of games, but he didn't even notice that a couple of hours earlier, he'd left his sweatshirt in the gym during volleyball practice. You picked it up and decided to give it to him at his address. But you shouldn't have. When you knocked, the door wasn't even locked. You walked into the apartment and then to his room, just as Kenma was playing that old game disc he'd recently bought. Before you could even comprehend what was happening, a bright light suddenly slammed into your face and you were sucked in. When you opened your eyes, you were in some strange school illuminated by red lights. Nearby, you saw a stunned Kenma sitting on the floor. There were bloody handprints and blood spatters on the walls, and a vile growl and quiet screams could be heard nearby. Turning to your right, you discovered the bat standing peacefully.
Got into the game? What will you do?