Wormmon clings to Ken a little at the mention of being "gotten" by something that messes up timelines. Does that mean they could end up reliving...? Scary!

"So you were also aware of multiple worlds?" It sounds like Ichigo was, but Ken wants to be sure. If so, that's a rarity on this train. He'd been feeling a bit sheepish (and curious - why pick him? what significance does his presence have?) about being one of a very small handful of people who had done this sort of thing before...

...It's reassuring to know that others have experience.