After the Rain (2018)

Following a failed confession to her first love, female high school student Mikoto Ochiai contemplates jumping off the roof of the school building. However, her thoughts are interrupted by the arrival of Jin Haiba, the physics teacher known for being a slacker and the butt of students' jokes. Calmly, he lights a cigarette and asks for an explanation of the events that led her to this precipice. Rather than dissuade her from killing herself, he makes a request—will she enter into a romance with him before she dies? Together, the two gradually ponder why they should keep living and why they should not love each other in earnest.

Both of these titles center around a relationship between a young woman and a much older man who work together. Through the relationship that is formed, both parties are able to grow and overcome the difficulties they face.

Both handle the age gap love in the purest of ways and make the characters grow in other parts of life as well. Delicate and deeply impactful.

This movie has the exact same lead actress with the same age gap theme. The endings are kind of similar but close range love ends much nicely.