They are doing ad lib that the drama club usually doing. Should have ask Hori senpai for help. Mikoshiba swapping between ad libbing and tsukomi is so funny.
Should have do a count on how many times Nozaki gets jealous because of Chiyo. Realize your own feeling Nozaki! Even Seo understands her feelings more than you. Do you want to lose to Seo?
It's a good thing that Kashima is both smart enough and dumb enough to see this all as a game, helps to avoid the misunderstandings these shenanigans would cause and the need to explain the purpose behind them 😂