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Jack the Ripper (切り裂きジャック) is a mid-tier undead being that Ainz Ooal Gown summoned during the E-Rantel Cemetery Incident on saving Nfirea Bareare.


Jack the Ripper has green hair that grows upwards like the pattern of a flame and long angular elf-like ears. Its face is cover completely by a white smiling mask with yellow eye holes in the shape of four-pointed stars. The being is dressed in a black overcoat with purple outlines and white buttons. Also, the tip of its fingers is all covered with sharp blades.


As a mid-tier level undead, Jack the Ripper could easily overwhelm its low-tiered skeleton opponents. The undead has a very thin body frame and seems to lack muscles, but it makes up for it with its lightning speed, agile movements, and deadly precision attacks. Jack the Ripper laughs hysterically as it fights. The undead slashes so fast that it leaves a slight afterimage.[1]


  • It is named after the notorious Victorian-era serial killer of London.


  1. Overlord Volume 02 Chapter 4: Twin Swords of Slashing Death


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