Hitozuma no chishû: Numeru matagura

"A mysterious woman who resembles his late wife. Unable to suppress his feelings for her, the man seeks her and overlaps her body."

Summary

Izawa is a former immunologist who is the manager of a building in a residential area. His research has stalled since his wife left him, and he continues to suffer from hallucinations of air raid sirens and bombers. One day, he meets a strange woman who sniffs around her. Her face looked exactly like his wife, Shigure...