Basics:
Here we go again! Here we have our protagonist Riku Nakamura entering Tengoku No Mon Mansion. [Heaven's Gate] (天国の門) During his School's Summer Vacation. He made one promise with his friends...To Spend this Summer Vacation to the fullest! What was planned to be a great summer vacation soon goes wrong when the room fill with sleeping gas. A few Hours later he wakes up in a unfamiliar with 15 unfamiliar faces. After Everyone has introduced themselves one question floods their minds. 'Why and How are we here...?' With the headmaster no where in sight they try to look for more clues but as soon as they try to leave a maniacal laugh is heard.. Sound Familiar? A certain Monochrome bear come to mind? Welp its not. Its Monokitsune! And he brings news! 'Ahem! Is everyone present? Good? Alright! Here I go..! I am the headmaster of this Trip as you may see. And I want to inform you all that you'll be living here for the rest of your lives! No need to thank me, Save your Applause for later!'
After some protests here and there he continued.
'You didn't let me finish if you want to leave you're going to have to destroy the order if you get my drift...and if not What I'm asking is live here in this mansion with no way out for the rest of your lives! Or Kill each other and hope the lucky ones to survive can leave. Now let the killing game begin!'
As he disappeared there was one look clear on everyone's faces. And that look was a glimpse if Despair. Can the 79th class survive this killing game with hope on their shoulders? "Stay Tuned!!!"