The musical chairs team and the sand collecting team are in the middle of a game of cards. They're trying to figure out a way to win the last round of the game. They have a plan: they're going to steal the round of cards that belong to the round-shouldered girl. If they do that, they'll be able to claim the round that belongs to the girl that they stole earlier in the game . The only problem is that the round they steal belongs to someone else, and they don't know who that person is. So they have to guess who it is and then guess who the person who stole the round belongs to. They can't figure out who the thief is until they figure out what the thief's name is. They wait for someone to show up, and then they can play cards. Finally, they run into the fox spirit. It's mystery 40, and it's about a girl who's been kidnapped. The fox spirit tells them that they've ruined all their plans for the last few days by running into the girl who stole earlier. They realize that the girl they ran into was probably a friend of theirs, and that they ruined everything they'd fought for in the process. They want to know what they can do to make up for the loss of their friend. They say that they still have a way, but only if they can find the one who steals the round.