Haikara-san: Here Comes Miss Modern Part 1
劇場版 はいからさんが通る 前編 ~紅緒、花の17歳~ (original)
Adapted from Waki Yamato's popular manga, Haikara-San is a heartfelt, and sometimes comical, tale of love surviving through the perils of war and separation.
Starring Saori Hayami, Unsho Ishizuka, Shizuka Itoh, Yuki Kaji, Kenta Miyake, Mamoru Miyano, Kazuya Nakai, Takahiro Sakurai
Watch "Haikara-san: Here Comes Miss Modern Part 1" on Tubi TV released in 2017. It's a animation and comedy movie, and has a rating of 7 out of 10 from Imdb which is usually fine for this kind of movie, and is currently available to watch for free.