Rokkagetsu no Hanayome

After losing both her parents, Briony Winters was adopted by a distinguished family in Britain. Since then, she has led a wonderful life...until she found out that the lady of the house, her godmother, Lady Ashworth, left a will with a shocking clause when she died. The will stipulates that to inherit the estate, Briony must marry Lady Ashworth's nephew and only blood heir, Luke Kingsley, who is also a famous hedonist. If she refuses, her friend Mary could lose her shop and Briony's servants will be out of jobs. To protect her friend and her staff, she has no choice but to marry this playboy Luke, yet she is hesitant to enter a loveless marriage. However, after one passionate kiss at their wedding, she feels something stirring in her body... (Source: Renta!)