I agree. As @Nami said, this is a complete and utter waste of time. As a rule of thumb, any 2-pager manga should be immediately ignored if you're not specifically looking for garbage.To me this lacks charm because the gap is missing. The author tries to create the gap by showing dad before and after. The issue is that after bears no resemblance at all, it's just a different character. If she was still trying to give the same speeches, but then running out of gas and crying you would feel the gap.
I'm a huge genderbender fan, but this gets 3/10.
I am disappoint son.