When the heat reaches 105 degrees, it's too hot to play a game of "mangoku" with iori, and the air conditioner breaks, so the two of them decide to play "paper scissors" . The loser stays home and decides the rules of the game, but the loser still gets into it. The two decide that they'll go out and play, and then the loser will come back and decide the rules again, but she'll still get into the game. It's not like they're really bad at the game - they just don't know how to play it. They decide to go out, and when they get there, they find out that the electrician won't be able to fix the problem until the next day, so they head out to cool the place down.