Hange Zoë rose from a Titan-researching squad leader in the Survey Corps to its 15th Commander, driven by relentless curiosity sparked upon discovering a Titan’s unexpectedly light severed head. This revelation fueled unorthodox methodologies, blending scientific rigor with emotional bonds to test subjects Sonny and Bean—losses that haunted them deeply. As commander following Erwin Smith’s demise, Hange navigated crises like the Rumbling’s apocalyptic threat and fragile diplomacy with foreign nations. Their disheveled appearance—square glasses, a Shiganshina-battle-earned eye patch, and perpetually tousled hair—mirrored their tireless dedication. Hange balanced exuberant empathy with icy pragmatism, threatening officials for intel or manipulating allies to secure advantages. Scientifically, they revolutionized Titan understanding and engineered Thunder Spears, reshaping battlefield tactics. They spearheaded critical operations: rescuing cadets at Utgard Castle and forging unlikely coalitions against the Rumbling. Facing moral quagmires, Hange rejected the Rumbling as genocide, orchestrating defiance despite overwhelming odds. Their final act—diverting Wall Titans through a fiery sacrifice—bought allies precious time, preceded by naming Armin Arlert as successor and exchanging weary reflections with Levi Ackerman. Interactions with figures like Eren Yeager and Mikasa Ackerman underscored Hange’s dual role as visionary mentor and burdened leader. Their legacy endured in humanity’s resilience, a testament to unyielding curiosity and sacrifice amid despair.