After a failed plot to threaten the leader of the coup that had killed his parents, Prince Nikolaus is thrown into the dungeons and is faced by the harsh truth that his most trusted guard, Travis, turned out to be a part of said coup.

Notes:
- Volume 1 includes 2 extra chapters and the one shots "Toraware no Otoko" (囚われの男), previously published in Kemono/Jingai BL, and "Hidane" (火種), previously published in Kemono/Jingai BL Special.
- Volume 2 includes 1 extra chapter, while Volume 3 includes 1 extra chapter and the side story "Ou no Tate" (王の盾).