Crayon Shin-chan: Shrouded in Mystery! The Flowers of Tenkasu Academy (クレヨンしんちゃん 謎メキ!花の天カス学園, Kureyon Shin-chan: Nazo Meki! Hana no Tenkasu Gakuen) is a 2021 Japanese anime film produced by Shin-Ei Animation. It is the 29th film of the anime series Crayon Shin-chan. The director of the film is Wataru Takahashi and screenplay is written by Kimiko Ueno.
The film's story begins with Shinnosuke and his friends of "Kasukabe Defence Force" experiencing a one-week stay in "Tenkatōitsu Kasukabe Private Academy" (nicknamed "Tenkasu"), an elite boarding school that is administrated by a state-of-the-art AI, "Otsmun". All the students are given a badge initially with 1000 points and their points are increased/decreased by Otsmun based on their behaviors and academic performance. In there someone attacks Kazama. As a result, his intelligence is reduced, and strange bite marks are left on his butt. The Kasukabe Defense Force joins forces with the school's dropout student council president Chishio Atsuki, who was a former athlete, to form a group of detectives and solve the mystery.
The film was initially scheduled to be released on April 23, 2021, in Japan, but was postponed to July 30, 2021, due to the COVID-19 pandemic. It was later released by Muse Communication in Singapore on September 9, 2021, and in Malaysia on November 18 as Crayon Shin-chan: School Mystery! The Splendid Tenkasu Academy. The film is released on Blu-ray and DVD on 4 February 2022.
Here is a table which shows the box office of this movie of all the weekends in Japan:
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