Koyoharu Gotouge Before Demon Slayer: Kimetsu no Yaiba

Koyoharu Gotouge Before Demon Slayer: Kimetsu no Yaiba is a collection of Koyoharu Gotouge’s earlier one-shot manga, created before Demon Slayer became their breakout series.

The collection is interesting because it shows the development of ideas and stylistic elements that would eventually appear in Demon Slayer, particularly Gotouge’s interest in supernatural threats, unusual protagonists, sword combat, dark humor, and distinctive character designs. Most notably, it includes Kagarigari, an early work widely regarded as a prototype/predecessor to Demon Slayer.

A collection of early one-shot stories by Koyoharu Gotouge featuring strange supernatural threats, violent encounters, and unconventional heroes. The stories showcase many of the darker themes, eccentric characters, and demon-hunting concepts that Gotouge would later develop more fully in Demon Slayer: Kimetsu no Yaiba, including the prototype story Kagarigari.

This volume sits beside Demon Slayer: Kimetsu no Yaiba rather than within its storyline. It gathers four one-shots that Koyoharu Gotouge published before and around the launch of the serialized series, collected into a single Jump Comics edition in 2019. It is a stand-alone anthology, not a continuation, sequel, or adaptation, and none of its characters or events carry over into the Demon Slayer narrative.

One of the four, Kagarigari, is described as the forerunner of Demon Slayer, preserving an early form of ideas the author later developed across the longer serialization. The remaining three, Monju Shirou Kyoudai, Rokkotsu-san, and Haeniwa no Zigzag, stand as independent works with no tie to that series. Together they document Gotouge's short-form output and the range of material produced before the author settled into a long-running series.

Because the anthology is self-contained, it can be read before, after, or entirely apart from Demon Slayer without any loss of continuity. Readers arriving from the main series should treat it as a companion collection that illuminates the author's earlier work, not as an additional chapter of the Demon Slayer story or an entry that extends its cast and timeline.