Ep. 20: Akira and friends receive mysterious notes leading to an amusement park prank mystery

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Akira, Suoh, Nagisa, and Utako each receive notes instructing them to visit an amusement park. The group assumes the messages are a prank orchestrated by Nokoru. However, Nokoru is unaware of the situation and has no involvement in the scheme. The characters proceed to the location based on the belief that their friend is playing a joke on them, despite his lack of knowledge regarding the notes. This creates a scenario where the recipients are misled about the source of the invitation while the suspected prankster remains confused by the events unfolding around him.