[3] Takashi Tsuruga once had a woman whom he saw from the train and fell in love at first sight.

The film Parallel World Love Story was released on 31 May 2019, distributed by Shochiku.

[5] During filming, Yuta Tamamori, the lead actor, was instructed by director Mori to play the role with the feeling of giving everything you have.

[9] Riho Yoshioka, who played Mayuko, said that since the film was based on a work that was said to be difficult to visualize, the script was difficult to follow, and that is why the director was so strict and she played the role with the feeling of fighting with the director every time.

[10] According to the June 3, 2019 Movie Audience Ranking (according to Kogyo Tsushinsha), this film ranked fourth with approximately 112,000 visitors and 143 million yen in box office revenue over the two days of Saturday and Sunday (June 1 and 2, 2019).