Edgar L. Leonhart hails from Slothstein and stands among the seven central protagonists, anchoring Chapter 2 of the main narrative. His combat approach thrives on tactical ingenuity, deploying calculated provocations to exploit enemy weaknesses—such as baiting an adversary into firing a bazooka to create ricochet openings. This adaptability proves vital against evolving threats like the Alkaroids.

Unwavering chivalry defines Edgar, manifesting as fierce protectiveness toward women in peril. This instinct ignites a "Berserk Button," driving ruthless retaliation against anyone endangering them. His collaborative combat techniques include the "Blade Breaker" Combination Attack with Logi Crowley, executed when proximity and resources align.

Amid the resurgence of forbidden alchemy across Babel, Edgar contributes to the ensemble's efforts against destabilizing forces. His role interweaves with the multi-character exploration of cyclical conflict and divergent paths within shared objectives.