Asha, a count's maid, dreams of earning money for her sick mother's medicine and opening a small animal hospital. One day, while living an ordinary life, Asha was chosen by the maid to go on an errand. So, she ends up in the darkest and most bizarre street of the Arte Empire called ‘Night Butterfly’…

"Go away. “Don’t touch me.”

There she met the beautiful slave Li Yi.

“Uh, uh… I will definitely cure you. It may be painful and painful, but please be patient. I will make sure you get better.”

Asha heals Rii, who is struggling with his wounds and tries to send him away now that he is healthy.

“It was you who saved me. My salvation, my master, my Asha.”

He seemed to have decided to stay by Asha's side. Looking at him smiling strangely, Asha realized.

Ruined. This is completely ruined. Clearly, that captivating smile had already predicted that she would not be able to escape.

[The female lead who is very shy and meticulous and who is good at her work and uses healing magic]

[The male lead who grew up like an animal, displaying a devilish lust that captivates both men and women, while wanting the female lead]