The First Claymore

Lore & Background

Contrary to the belief that all early records were destroyed, the Organization retained foundational knowledge of the first successful experiment internally for centuries. Although this history was hidden from the warriors themselves to maintain control, the Organization possessed the specific data required to replicate the process over and over again.

Reader's Guide

The First Claymore serves as the mythical origin point for the entire organization's existence. In the distant past, humanity faced an existential threat from Yoma that conventional weapons could not stop. A breakthrough occurred when a woman underwent the procedure to become half-Yoma and survived, proving the concept viable. Her success established the template for all future warriors, creating a lineage of women who would fight monsters using monster powers.

However, her story also highlights the inherent danger of this path; she walked the razor's edge between human consciousness and the beast within. Her eventual fate remains shrouded in history, but her impact is undeniable. She is often cited as the reason the Organization was able to flourish for centuries. By proving that a Claymore could exist without immediately turning into an Awakened Being, she gave hope to humanity.

Yet, her legacy also serves as a warning: the power she wielded is unstable, and every warrior who follows in her footsteps risks losing themselves to the very darkness they fight.

Did You Know?

• Teresa is recognized as the strongest warrior in recorded history, but she stands on the shoulders of a documented predecessor established by the Founder.
• References to 'The First Claymore' are not just fan theories; they are confirmed canonical events depicted directly in the manga.