Talk:Touka Kirishima/@comment-32460413-20170708101922/@comment-26991434-20170708195841

Don't. Nothing should be done at all unless the combination is mentioned in-story. Japanese law only considers a couple lawfully married if they share a surname, so the vast majority does keep to the practice, yet a spouse is allowed to informally use their birth surname at places such as work and in outings with friends and whatnot. Regardless, it is still too early to even consider doing this even if it wasn't already locked from action(at least I think it still is).