OVA
Description
Rikki features in two official storylines: "Violence Jack: Evil Town" and the "Shutendoji" OVA series.

In "Violence Jack: Evil Town," Rikki emerges as a former professional wrestler and bodybuilder, defined by her formidable muscular build and blue ponytail (though manga art occasionally depicts lighter blonde hair). Trapped in an underground mall after the Great Kanto Hell Quake, she joins Section C, a faction of women survivors targeted by Section A. Rikki becomes their primary defender, often standing alone against aggressors from Sections A and B. She shares a protective bond with Section C leader Aila Mu, offering moments of comfort. Rikki employs practical combat skills, wielding tools like a pickaxe to breach stone barriers and engaging in direct physical confrontations. While investigating a noise during an escape attempt (later revealed to be Section B's Kawamori urinating), she suffers a fatal ambush by Section B members.

In "Shutendoji," she is identified as Rikki Muso, a descendant of the oni Goki, granting her supernatural lineage. Appearing in OVA 2 with blondish hair and dressed in 1980s attire or leather armor, she aids Yusuke Shiratori and Jiro Shutendoji against Kitani and Jawanbokikai. During a temple battle, she sacrifices herself to shield Jiro from an attack, explicitly mirroring Piccolo's sacrifice for Gohan in "Dragon Ball." Her final words express hope that her strength aided Jiro.