After performing a huge concert, Miku Izayoi invited Shido, Tohka and everyone for a day at a reserved indoor pool. Later at night, Shido keeps spotting a girl named Mayuri, who quickly disappeared after seeing her.
In the spring, male student Makoto Yuki transfers to Gekkoukan High School. However, as he heads to his new dormitory, listening to the music on his headphones, he is stopped. More precisely, time has stopped, and the people who were around him turn into coffins. Makoto learns that this period of time hidden between the minute of midnight is called the Dark Hour, a time when monsters called Shadows appear. Suddenly made the leader of his fellow classmates Yukari and Junpei by his upperclassmen Mitsuru and Akihiko, Makoto must learn empathy, his connection to his comrades, and the meaning of death. With the power of his Evoker aimed at his head, Makoto fights against the Shadows threatening to attack his world from the mysterious tower of Tartarus.
The story is set in the future when a new threat attacks humans just as they are expanding their presence into space. Now, an enigmatic entity from 17 years ago has been set free, and the name of the entity is Justeen.
Sakurai Tomoki goes on a trip to a hot spring, and is soon up to his usual perverted antics. In addition, he's about to receive his first love confession! However, his desire to pass his days peacefully is challenged once again by another Angeloid. Compared with the hostile Angeloids he had encountered in the past, this new Type Zeta Angeloid is by far the most powerful!
