If there was one thing 당신 wanted to do with one of the characters, what would it be?

It depends on the character.

Rintoo: Take him to the local racetrack and watch a race together.
Tolee: Get a picture taken with him and his stuffed panda, Pandy.
Hoho: 3 words: Banana. Eating. Contest. Enough said.
Kai-lan: Whatever she wants to do that day, I guess. She IS the 제목 character of the show after all. Also, in this case, I'm not picky.

I told 당신 it'd depend on which character I wanted to spend a 일 with.