Mouryou no Hako

Overview

Manga adaptation of the second novel in Kyougoku Natsuhiko's award-winning Kyougokudou Series. Right after the war, Showa era in Japan. Kusumoto Yoriko and Yuzuki Kanako who attend an all girls school plan to take the last train to go to the lake. However, Kanako ends up getting run over by the train. Tokyo Metropolitan Police Department's Detective Kiba who happened to be there when it happened, is asked to watch the confused Yoriko. Kiba goes with the worried Yoriko to the hospital Kanako is taken to, and there Kiba meets a woman who calls herself Kanako's sister; Yuzuki Youko. That happened to be the actress Kiba had been admiring, Minami Kinuko.

Source: AniList