Product description ※Please note that product information is not in full comprehensive meaning because of the machine translation.
"Once in a thousand years, the doors of a different world are opened, and those who have different forms appear.
But when the world is in crisis, they will be saved by the legendary guardians of Koshi and Koshi."
As the tradition handed down in the thousands of years of history suggests, the doors of a different world are suddenly opened, and those who have different forms appear to the high school students who have lived a peaceful life.
The high school students follow the destiny of the guardians of Koshi and Koshi and decide to fight to save the world.
"Don't worry. It's our mission to protect you."