The 8-Year Engagement (8年越しの花嫁 奇跡の実話, 8-nengoshi no Hanayome: Kiseki no Jitsuwa) is a 2017 Japanese film directed by Takahisa Zeze.
[1] Living in Okayama, Hisashi meets Mai for the first time at a restaurant party, but she lets him know she doesn't like his sullen attitude.
More than a year later, Mai finally wakes from the coma, but in the words of the doctor, needs to start all over again, re-learning how to speak and move her body.
The attendant recognizes her and tells her that Hisashi had still maintained the reservation, postponing it each year, but keeping the same date: March 17, the day they first met.
Realizing that date was the password she had forgotten for her phone, she opens it to see that Hisashi had been sending her videos for years to encourage her even as she was in a coma.