Kathy, who runs a hotel in the Bahamas, was called out at a sandy beach close to work, she turned around and gasped. It was because the man who was standing there she was the man she had seen at the hotel earlier. His name is Brandon. While enjoying a conversation with him, she becomes a prisoner of his, and eventually Kathy feels that this was a fateful encounter. After having dinner together several times, she will devote herself to him by instinct...it was in the next morning that she knew the encounter with him was planned. From Renta!
During a school excursion to the Hiroshima Peace Memorial Museum, loner Minami becomes separated from his group. He wanders into a small room with a white door, only to find a strange girl called Sawako getting changed. In his embarrassment, he shuts the door - and finds himself in central Hiroshima, on the morning of August 6th, 1945. As panic sets in, he manages to grab Sawako and her bike and takes the two of them as far from the epicentre as he can, the pair falling into a river as the bomb goes off. They survive the initial blast, but as the immediate effects of the bombing come to light, Minami finds his own memories of the Tohoku Earthquake overlapping with the terrifying reality set out before him...
Doujinshi of Shikiko Yamaai's *Hikage Jouji* novel series (日影成璽シリーズ), published in a 1984 self-published collaborative magazine titled ["Masochism"](https://archive.org/details/m-masochism-doujinshi-1984). *(Source: MangaDex)*