The Gray maid summary:
Read manhwa The Gray maid / 재투성이 메이드 / Ashe: the coveted maid There are rules that must be followed in this mansion- Never see, hear, or know the existence of the ” Secret Corridor ” and its manager. Hired in a mysterious mansion , Maid Ashe meets the hidden master of the mansion who has lived alone in the basement. The two, who were shunned around, continue to covet each other in the secret room…