Escaping... From Death itself

After seeing what's making the shadow above them, their jaws dropped out of fear. It's a Dragon of hell in which is capable of blasting the entire school onto dust, while others are panicking, the trio tries to make a plan to escape and suddenly a hologram-like screen appeared before them stating

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Mission: Escape the School

Difficulty: SS

Description: In order to escape, you mustn't make a sound as the dragon is capable of hearing even your breathing and even the most lightest of all steps, good luck and hopefully you survive because I can't afford to make my viewers bored!

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Viewers are something mind-blowing as they watch everything happen, even billions of years ago, they are like gods and the one that's sending missions are the host or "content creator" in our world, they are also very powerful beings that can destroy the whole world if they want to but they rather not destroy the world because they need to entertain the viewers ( true name of viewers will be revealed also the true name of the "content creators" will also soon be revealed! ) . After some time of thinking, Dokusha has an idea in his mind and said " why don't we take the sewers? it might be very stinky and disgusting but our lives are more worth it!! " " Yeah your right Dokusha! we should tell that to everyone so they can also escape!! " Yūki replied.

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Few Minutes have passed

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They are walking when they suddenly got attacked by alligators ( you might be asking " how the hell are there alligators in sewers " I'll tell you why, it's just for plot, okay! ) . They all tried to fight of the alligators but the alligators are in advantage because of their numbers, suddenly the wall exploded revealing a man, named...