Depending on the age of girl when she got isekai "middle-age man" would definitely be more appropriate then 30-ish workaholics than die from overworking and then fall for young teens.
But her dad didn't seem to have aged a day, in the decade that he raised her. So...that seems to be a problem.
@Empress@Totnerp There is an English translation. I didn't read it yet, but the translation is still ongoing. Check novelupdates under the same name. Oh, I just saw their is a link on the homepage of this comic here under information. You might have already seen it, sorry.