Usotsuki Mii-kun to Kowareta Maa-chan

A rural city becomes the site of a kidnapping and multiple murders, echoing a similar case from eight years prior. The compulsive liar, who serves as the narrator, and Misono Mayu, known as "Maa-chan," come together and begin cohabiting. Despite the fact that the previously kidnapped children were found in Mayu's apartment, the two form a living arrangement as the current events unfold.