My Teacher (2017)

In My Teacher a student falls in love with her World History teacher and in Majo no Jouken a Math's teacher falls in love with her student. In both dramas their love is returned.

20 years ago, Kei, a 23 year-old highschool teacher, fell for a student, Hitoha, a beautiful girl, but lost her from a tragic car accident. He’s now a middle aged factory worker who has just quit the job to visit Klavan in Ukraine. There lies a beautiful railway called Tunnel Of Love, where people say you can meet with your deceased beloved one. A freight transport runs once a day and it is said that the train takes someone you wish to meet

Both portray a relationship between the teacher ML and his student FL. In one, the ML is older, in the other they're almost the same age.

Both are romance movies about teachers. Both are kinda similar. Both are based on famous manga..............

school/teacher/student, romance, cute, senses of humor...
for My Rainy Days: Nozomi Sasaki alone is worth watching, her acting in this particular movie is one of the best i could remember, not to mention her extraordinary beautiful appearance. Available 4K on youtube.