In 2018, the novel was adapted into the film Cafe Funiculi Funicula, starring Kasumi Arimura. In 2017, a sequel was released: Before the Coffee Gets Cold: Tales from the Café, and a second sequel Before Your Memory Fades was released in 2022. The novel was then translated into English by Geoffrey Trousselot. The story originally began as a play, before being adapted into a novel in 2015. The fourth, one of the café co-owners named Kei, tries to go to the future to talk to her unborn daughter. The third, a bar owner named Hirai, tries to talk to her sister whom she's been avoiding. The second, a nurse named Kohtake, tries to find a letter her Alzheimer-stricken husband wrote. The first, a businesswoman named Fumiko, tries to repair her relationship with her boyfriend after he left the country for a job in the United States. The novel follows the stories of the café staff, notably barista Kazu, and four different customers. There is only one seat in the café that allows time travel the seat is only available when the ghost that usually occupies it goes for a toilet break once back in time, customers can't leave the seat the only people in the past who can be met are people who have visited the café whatever happens in the past, the present won't change and, most importantly, the customer has to return to the present before their cup of coffee goes cold (around 1 hour). In the café, customers have the opportunity to travel back to a time of their choosing, as long as they follow a long list of rules.

In a narrow back alley in Tokyo lies a café called Funiculi Funicula. It tells of a café in Tokyo that allows its customers to travel back in time, as long as they return before their coffee gets cold. 2015 Japanese novel by Toshikazu Kawaguchiīefore the Coffee Gets Cold ( コーヒーが冷めないうちに, Kohi ga Samenai Uchi ni ) is a 2015 novel by Toshikazu Kawaguchi.

Book before the coffee gets cold