https://www.cmoa.jp/title/292495/

Karina is the daughter of an earl whose estate went bankrupt, thus forcing her to work herself to the bone as a maid in the royal palace. On her way to decorate a room with flowers, Karina accidentally bumps into a dark-haired knight with piercing eyes who happens to be the so-called "earless" commander of the Wolf Knights, Hubert. Wolf ears are considered proof of a person's nobility, but Hubert hides his as they give away his emotions. This "earless" knight is famous for being cold-hearted and unmoved by any woman who approaches him. However, Karina happens to walk in on Hubert in the throes of his heat...!! Hubert confesses to Karina that his desire is to savor every inch of her. What will happen to Karina with this never-before-seen side of Hubert gazing down at her passionately!?