It was just supposed to be cleaning out the old school house… why.. why did it turn to this..

What was once supposed to be simple volunteering for the school, turned dark as Tsukiyomi and Azari were pulled deeper into the old school building. Slowly falling deeper into the labyrinth of the old school building. Meeting new friends and foes on the way… but who can be trusted to help them escape.. or can anyone be trusted?

Will they be able to escape the master of the growing labyrinth of the old school building?