The Candy Store (Ketchup 2) is an episode from season six.
Being the sequel to Ketchup, this episode is wild and hard to recall. The basic plot is that Viridi sees a candy store in the Skyworld. She finds it to be owned by Dark Pit. Pit also comes in. At this point, they get locked in. Viridi dislikes this because she's on a diet and doesn't want to eat candy. The rest is unrecalled.
"The Reincarnation drives Dark Pit mad again, and now he's opened a candy store."