Why Didn't My Husband Hide His Tail Well?

Qiao Ying, the amnesiac eldest daughter of the Qiao family, wakes up in a dungeon and accidentally saves Shen Qingyu, a blind boy with white silk eyes, and the two escape together. She only thought of him as a gentle and kind-hearted young man in distress, and she trusted him wholeheartedly in times of crisis. Little did she know that this seemingly harmless young man was actually a fox demon villain who made the three worlds fearful. He hid his sharp claws and sharp edges, and stayed with her under the guise of gentleness. And that fox tail that could never be hidden, was it an honest mistake, or was it a trap he set every step of the way?