The characters in the story are fully grown both physically and mentally.
えええ!? なんで体が女の子になっちゃったの? あれ、服がどうして……
うっ、さっき何が起きたんだ? あ、これどんな服だよ、ていうかここどこ?
「ねえ、らんまちゃん、何言ってるの? 飛行機がもう離陸するよ、早く早く!」
数日後……
「くそっ、もう何日もキャビンアテンダントやってるけど、元の体に戻る方法はどうすればいいんだよ。うっ、もう我慢できない、トイレ、トイレ……」
Hey, hey, hey!? How did my body turn into a girl's? Oh no, what happened to my clothes...? Ugh, what just happened? Ah, what kind of outfit is this? Where am I?
"Hey, Ranma-chan, what are you talking about? The plane is about to take off, hurry up, hurry up!"
A few days later...
"Damn it, I've been working as a cabin attendant for days now. How am I supposed to get back to normal? Ugh, I can't hold it anymore, I need to pee..."