When the legendary Cardinal Knight Commander of Aorangracia falls in battle, the empire mourns the loss of its youngest war hero. With enemies stirring on the borders and the Leylines of the land growing unstable, the empire turns to the Grail for guidance.
The answer it gives is unexpected: a summoning of a perfect visual form.

Yuushin Takako, a quiet, slightly awkward 17-year-old student from modern-day Japan. wakes up in a world where the sky burns gold at dawn, and silver at night. Thrown into a broken military hierarchy, a foreign culture. Yuushin must earn the loyalty of his fellow cardinal knights and uncover the truth behind 'THE ARGUS'