It's funny when you realize that this anime and Demon Slayer: Kimetsu no Yaiba are set in the same time period--the Taisho era. The characters are contemporaries.
This is one of the better animes with the tag ”romance” on it. It has it all; good and bad things happen, love and intimacy in a very wholesome way. I highly recommend to watch it. 🙂
FYI : She's 15 and he's 17 in that era 15 is legal for marrying. Don't underestimate the shortstack, she have two big bazoongas but decides to hide it.
tomato head future general he is still learning more before merriage thats why he said not yet. because why would have a child you cant even protect your own family