Konin Todoke ni Han wo Oshita Dake desu ga

A 27-year-old woman who is determined never to marry is unexpectedly proposed to by an editor named Shin Momose. His interest in marriage is not based on love, but because he requires the legal status of a groom for an unspecified purpose. She agrees, and the two begin an unusual marital arrangement. The question remains whether this initially transactional union might eventually develop into a genuine romantic connection.