Where The Green Walls Lie, and Brain Cells Die

Follow the adventures of.... V:Clichè right? Well no matter, on with it N! N: ok, jeez! Follow the adventures of Nagisa-sensei and his trusty companion Vadim the magical tortoise, yes a talking tortoise. Will they ever uncover the secret of the green sacred green walls? Find out inside! N: "There you happy Vadim?" V:...