Ep. 7: English teacher Saeno Hiiragi receives a pi book from her late professor and travels back in time to give it to her younger self.
Aired on November 18, 1999
7
Saeno Hiiragi, who works as an English teacher, is given a book containing part of the value of pi by her deceased mathematics professor. Following this event, she returns to the university where the professor had taught. There, she travels backward in time and presents the book to herself while she is still a child. This sequence of events creates a paradox involving the transfer of mathematical knowledge across different points in her personal timeline and professional life.
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- Ep. 7 · English teacher Saeno Hiiragi receives a pi book from her late professor and travels back in time to give it to her younger self.
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