Now, now, Sensei. Let Akira do wifey stuff and you shouldn't think of any plans to shoo her off. Get use to Akira and be ready for marriage. If you keep refusing, your parents gonna nag you to death to when you're getting married.
Okay. I'm gonna say it -- is it not possible that this sweet smol wife version of Akira was always there under the original delinquent's persona, just waiting for a chance to wake up? Because she's WAY too natural at this. There's a five letter word for this phenomenon but I'm not saying it because it tends to cause a Pavlovian hostility response in some people on the internet. (like that one murderer in Columbo who trained his dogs with a keyword that sets them to kill)
Suffice to say it's wonderful seeing Akira as who she's meant to be with someone who is happy to accommodate and support her.