[Ken has been feeling kind of broody lately - he can't find his erstwhile travel partner anywhere, but all her Pokémon found him. Could she really have gone home without him noticing, because he's been so wrapped up in his own goals and his friends from home? Guilt tugs at him.

So when he sees a newcomer - well. Nostalgia trip. (Odd that he can have one, but he's been here longer than he thought...)]

Concern's natural, so I can't tell you not to worry. We all have things we need to do.

But time flows differently between worlds. You'll return to the moment you left.