High school girl and adult hero relationship. Both Japanese and both full of romance. I like watching Japanese romance movies and I really enjoyed these. If you want to dream and you do not expect a lot, I recommend you to watch them.
Both have one or both of the leads in life-saving professions. Both FLs admire/crush on the MLs at the beginning when they save her, and both MLs are established in their careers whereas the FLs are still in school/starting their careers.