Somethings off at the I.S. Academy... Even Chifuyu seems less than normal... Sounds at night, reports of 'Demonic Robots', Even ghostly laughing and giggling.. So when one day Ichika was coerced to become the "Night Guard" for a few nights to see what making all this commotion, it's more than unnerving... But something tell Ichika there's more going on.. Will Ichika get to the bottom of this mystery...?