Funou Koushaku ni Totsuidara, Kodomo wo Mamoritaku Narimashita

Born as the illegitimate daughter of a count, she has spent her life obeying her family in hopes of securing a place where she belongs. One day, they cast her aside by forcing her to marry a duke feared by society and rumored to be impotent. After learning the truth behind her mother’s death, she resolves to stop living at the mercy of others and finally choose her own path. But upon arriving at the ducal estate, she finds a highly guarded young boy and a cold husband who tells her she has nothing to do. As she gradually grows closer to the child, unfamiliar feelings of warmth begin to bloom. Meanwhile, a hidden secret lies behind the duke’s infamous reputation.