Ichiokuen no Sayonara (2020)

Description:

Kano Teppei has been living a modest life as a medical sales representative. One day he learns that his wife has been hiding a 4.8 billion yen (~45.7M USD) sum that she inherited 24 years ago . (from her grandmother.) Teppei reminisces about their marriage while dealing with issues at his company. ~~ Adapted from Shiraishi Kazufumi's novel of the same name.