Three chapters of the EMIT time-travel mystery series collected together.
In Vol. 1: Toki no Maigo, seventeen-year-old Yuri encounters a polite elderly man at a crosswalk on October 5, 1994, who murmurs the word Emit as she passes. She thinks nothing of it—until an eerily familiar young man approaches her a month later.
In Vol. 2: Inochigake no Tabi, Yuri's friend Outa Ichirou claims he saw her recently—even though Yuri has not seen him in over a year. A dimensional doppelganger is attempting to steal her identity.
In Vol. 3: Watashi ni Sayonara o, Ichirou and Yuri's mother grow suspicious of the impersonator. Yuri's sudden return throws the doppelganger's plans into disarray as the final confrontation approaches.