People Are Destroying Ghosts, and the Demonic Eye of Death Is Awakened at the Beginning.

Time travel, but the protagonist has forgotten the plot and only remembers the general characters After Mubai traveled to the Demon Slayer World, he became a member of the Demon Slayer Team at the invitation of Yanzhu. Although his talent in practicing breathing techniques is beyond words, this does not prevent him from becoming the nightmare of all ghosts. Regeneration ability? Must the neck be cut off? Do I have to use a nichirin sword? Oh, it doesn't exist This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.