Demon Slayer: The Emotionless Swordsman

Fengyuan Che was reincarnated in the Meiji era. On his ninth birthday, a demon slaughtered his entire family, and he learned that he was in the world of Demon Slayer. The sole survivor, he was haunted by nightmares of his loved ones’ brutal deaths. His heart grew colder, until all that remained in his mind was a familiar yet indistinct nursery rhyme. He had never heard of the Demon Slayer Corps and knew nothing about how to kill demons. Driven only by an all-consuming hatred, he had to find his own way through the darkness. Later, he joined the Demon Slayer Corps and became the Water Hashira, the quietest and coldest member of the Corps, as well as its sharpest blade. His only wish in this life is to kill every demon under the heavens. (One heroine: Shinobu + no System + original Water Breathing style + unaware of the plot) [Note: This version of Water Breathing differs from the original]