Eld rules a dangerous territory where death is a constant companion. When Nora, a noble lady from a major power, arrives to marry him, Eld assumes she must have some dark secret or defect to end up exiled to the remote borderlands. In reality, she proves to be a devoted wife who works tirelessly at unfamiliar housework and dutifully waits up until dawn for his return from battle.

Why was such a noble woman banished to the frontier? As her unexpected past comes to light, the invincible swordsman Eld learns the truth behind her exile. Filled with anger over the sorrow forced upon his beloved wife, Eld rises to crush every injustice in this pure love fantasy between the ultimate war demon and a villainess.