In order to get rid of his relatives and daughters who want to take over the family, Duke Evald organizes a fake marriage with Lydia, the count's third daughter, in exchange for her debts. But, what the duke doesn't know is that she has a dark side: she is a "popular rose (BL) novelist" who observes Evald and fantasizes about BL stories. Her behavior is different from that of other young ladies, and gradually Evald becomes interested in Leadia...