Itsuwari no Akujo desuga Suenagaku Shiawase ni Narimashou: Onozomi no "Koiooki Onna" o Enjiteiru noni Otto no Yousu ga Okashii

Synopsis:

It has been decided that Lynette will wed Alfred—a man rumored to be a playboy seeking a young woman capable of manipulating men—in place of her sister, who eloped with the dowry. To avoid being cast aside, she attempts to embody the seductive persona that Alfred desires, but he does not respond as Lynette anticipated?! As it turns out, Alfred is not the playboy he is rumored to be, but rather a sincere novice in matters of love. Nevertheless, he chooses to feign the role of a playboy to uncover Lynette's true motives, as she was sent by the queen, his greatest adversary!