As the third princess of the nation of Ilisha, Alessia is forced into a contract marriage with Eric, a hero from the neighboring country they were at war with, all in the name of peace. Her relationship with Eric, who is always busy with administrative and diplomatic affairs, is cold and distant. Labeled a "spoil of war" from an enemy nation, Alessia is ostracized and isolated by those around her.

One day, three years into their marriage, Alessia accidentally inhales an aphrodisiac and is overcome by a burning fever. When Eric appears, she finds herself unable to resist his presence and embraces him, leading to them spending their first night together.

As dawn breaks, Alessia tries to convince herself it was a momentary mistake to be forgotten, but afterwards, Eric's attitude undergoes a complete transformation. He begins to treat her with gentle concern, and above all else... he now wants her whenever he has a spare moment! He loves her so much and desires her so intensely that her body can barely keep up...

White night