The Fear Within the Eye of Hitomi

Hitomi is a middle school student at Octavian Academy. She's in math class, and suddenly, she blackouts. She is sent into a pitch black, but in the distance shines a light coming from a massive wooden and iron door. Hitomi slowly walks to the door, questioning if she should enter. Eventually, she summoned the courage to open the door, but darkness was behind it. She continues walking throughout the room, and here, the door slams. All of a sudden, she hears deep growling that turns into roars. You must read to find out what's in the room behind the mysterious door.