"I see. So instead of protecting a single world, we're chosen from different worlds to help all of them."

Ken's theorizing by the seat of his pants, which is not his preferred method, but he has to work with what he has.

Still. He doesn't get it. "Then why just me.....?"

"Ken-chan, it's okay. There's lots we can do without Jogress. I'll be strong. You'll see!"

They're in front of another world's equivalent of Chosen Children. Wormmon has to show off his amazing strength as a partner!