Question: how many episodes are there in kimetsu no yaiba?
Answer: The series ran for 26 episodes and adapted the manga from the beginning of the first volume to the first chapters of the seventh. Prior to airing, the first five episodes screened theatrically in Japan for two weeks from March 29, 2019, under the title Kimetsu no Yaiba: Kyōdai no Kizuna (鬼滅の刃 兄妹の絆).