A new houseguest brings new complications to the detective agency! When a beautiful, mysterious woman appears on poverty-ridden detective Iwai Soma's doorstep and decides to stay with them, she asks Kanoko a disturbing question: "What will you do if Mr. Iwai gets married?" As Kanoko grapples with her feelings, a new case involving a missing woman and a web of lies unfolds. Can Soma and Kanoko uncover the truth before it's too late? This historical mystery manga delves into themes of social class, relationships, and the burden of secrets, appealing to readers who enjoy character-driven stories and intricate plots. Perfect for fans of historical fiction and detective manga, this volume promises suspense, intrigue, and emotional depth.