Hungry is Wormmon's answer, but Ken-chan's answer is more important so he remains silent and waits for his partner. For his part, Ken is weighing his options, but decides the Doctor has been concerned enough about his well-being that it won't be a bother to her if he's honest.

At least, he hopes not.

"...Apprehensive," he admits. "This isn't the first time I'm saving another world. But we can't go home...."

The moment he says it he regrets it, looking down and clenching his jaw. That is so spoiled of him. Plenty of the other children in his home world didn't have the same agency or choices he's had, just because his Digivice is a different model. Short-sighted Ken. Petty Ken.

Good-at-beating-himself-up Ken.