A really famous boy group who can sing and dance goodly known as Bangtan Boys or BTS. They're singer. I mean, international singers. Well, they have a lot of fans from different countries such as Indonesia, Thailand, US, South Korea, etc. But who knows they have a power that can bring them to the other side of this world? Not only in this world, but somewhere out there that I don't even know where exactly is it. Actually that day is their important day for their fans, ARMYs and for them. But

Junpei Iori, a class clown in Gekkoukan High was found by Akihiko Sanada crying in a convenience store during the Dark Hour which lead him to joining SEES and become a dormmate with Yukari Takeba, a long classmate and a popular girl in their school and Minato Arisato, a transfer-student who are member of SEES as well. During their investigation about the Dark Hour, he met Chi