Arc 1From Mountain Training to First Mission
Kato Teiichi trained under Kazeno Shoma, lost him to Upper Rank Four, and prepared for the Demon Slayer Corps by rescuing Kobayashi Kanon and surviving Final Selection. After joining the Corps and receiving his custom Nichirin Blade, Teiichi began investigating disappearances in Yamada Town, where another girl vanished despite his patrols.
- Kato Teiichi woke from a demon attack, met Kazeno Shoma, and began training to join the Demon Slayer Corps.
- Teiichi rescued Kobayashi Kanon from a white-haired demon and killed it, then agreed to help Kanon become a Demon Slayer.
- A Kasugai Crow announced that Shoma had died fighting Upper Rank Four, and Teiichi resolved to grow strong enough to kill Hantengu.
- Kanon left for the Butterfly Mansion, while Teiichi chose to take the Mount Fujikasane Final Selection.
- During the trial, Teiichi defeated several demons and rescued Shota from a Hardening Demon.
- Teiichi killed the Hand Demon after it threatened Kanae Kocho and the other candidates, then passed Final Selection.
- Kagaya Ubuyashiki made Teiichi a Mizunoto, and Tetsumoto Homura later delivered Teiichi’s fifty-six-kilogram Nichirin Blade.
- Teiichi investigated disappearances in Yamada Town, but after three nights of fruitless patrols, another girl went missing.