There are only ten days left until graduation. The daily life of Grade 3 Class A was completely shattered in this day's class.
The art teacher Hiiragi Sa who only likes to watch special feature films and is privately ridiculed by students as "a nerd" and "waste" suddenly sealed off the campus.
He has only one purpose: to find out the real reason why Mina Kageyama, the star swimmer in his class, committed suicide a few months ago.
This normally cowardly teacher has now demonstrated frightening fighting skills, a meticulous organizational layout, and a terrifying control over the city's online public opinion. What is his purpose?
A final experiment that risks life and soul, the passionate middle section of the symphony is officially performed.
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There is a CP in this article, which is not made public for now, but will be made public as the plot develops.
Purpose: To teach the whole world one last time.
