Onna tantei: shita de shibori-komu

Noriko runs a detective agency, but business has been slow. Then, one day, a new case finally comes her way. A client named Nomura asks her to investigate his fiancée, Kyoko. Kyoko, who works as a researcher at a pharmaceutical company, used to be perfectly ordinary—but according to Nomura, she has become a completely different person over the last few months...