Winner of the 9th Net Novel Grand Prize. On November 5, 2022, the book version was released! In the 34th year of the Meiji era, Yae, the youngest daughter of the Takatsukasa family, one of the five regent families, invents a method to synthesize white threads from a solution at the tender age of four. This thread is known historically as '66 Nylon,' a substance that was supposed to be discovered in America. This is because Yae Takatsukasa is a high polymer chemist from over 120 years in the future, who has been reborn with her memories intact. This is the story of a polymer scientist who, reborn in an era where the word 'polymer' does not even exist, strives to change Japanese history.