Eso, a cursed human forged through Kenjaku’s experiments, belongs to the trio of Death Painting Womb siblings. His towering frame combines muscularity with unsettling features: shifting black or brown hair, violet eyes set against dark sclera, and a grotesque, bloodied face grafted to his back. This parasitic growth—marked by sunken eyes, a lipless grin, and jagged teeth—exudes a putrid stench of perpetual decay. Sensitive to its repulsion, Eso reacts violently to any attention directed at it. His attire, fashioned with a striped collar, bow tie, chest band, and suspenders, strategically conceals the growth while avoiding irritation. Bound by over 150 years of isolation alongside brothers Choso and Kechizu, Eso anchors his purpose in their unbreakable kinship. He upholds Choso’s authority as leader yet fiercely shields the younger Kechizu, balancing loyalty with protective instincts. Though not innately aggressive toward jujutsu sorcerers, he employs lethal force without hesitation, as seen during his mission to reclaim Sukuna’s fingers. His unpredictable personality blends mischievous taunts and flamboyant gestures, veiling a merciless resolve to eradicate threats to his siblings or pride. Categorized as a Special Grade cursed object, Eso commands the Rot Technique, channeling corrosive blood into devastating attacks. His Decay technique unleashes blood droplets that trigger swift necrosis on contact. By invoking the Binding Vow *Revealing One’s Hand*, he amplifies his power by verbally disclosing his abilities to foes. His pinnacle attack, Maximum: Wing King, conjures colossal wings of solidified blood that launch concentrated projectiles capable of pulverizing entire buildings. However, his physical resilience falters under overwhelming force, exemplified when Yuji Itadori’s Black Flash shattered his reinforced arm mid-battle. During the Death Painting arc, Eso and Kechizu lured Yuji and Nobara Kugisaki into a lethal confrontation, seeking retribution for their sibling’s demise and Sukuna’s finger. Nobara’s Resonance technique exploited their shared bloodline, crippling both brothers simultaneously and sealing their defeat. Their deaths ignited Choso’s vengeful fury, later tempered by the revelation of Kenjaku’s machinations linking him to Yuji as kin—a twist that reshaped Choso’s allegiances. Eso’s fleeting yet pivotal role underscores the fractured legacy of the Death Painting siblings, their lives and strife irrevocably shaped by Kenjaku’s fusion of cursed energy and human experimentation.