The premise hits you immediately: your phone shows you how you die, and the only escape is summoning demons to fight demons in a war you didn't sign up for. Thirteen episodes means the pacing destroys itself trying to cover what needed twenty-six, but when it lands, that ending justifies every rushed pivot. Watch it in one sitting or not at all.
An earthquake strikes, and Hibiki should die in a subway crash. Instead, he walks away with two others, Daichi and Io. The three become Devil Summoners, humans who form contracts with demons and command them in battle. Their mission is immediate and terrifying: otherworldly invaders called the Septentriones are set on wiping out humanity, and demons are the weapons summoners turn against them. Their abilities draw the notice of JP's, an underground agency led by Yamato Houtsuin, which recruits them to fight beside other ordinary citizens with the same power. Each new day brings another Septentrione to ravage Japan, and each must be defeated before the night is over. In this war, a person's death can be seen in advance, every life becomes a piece to be saved or spent, and the clock keeps counting down toward the end of the world.
