Riki was an officer of the empire's Stigmal-elimination faction: the Lightholders. Her unrelenting ferocity towards the Stigmals was well-known, but few were aware that the reason for her enlistment was to prevent others from experiencing the same tragedy she had. Her brother had been afflicted by the Stigma, and it was by her own trembling hand that she removed his Komora Stone. "Please forgive me..."
- As Shadowslicer Riki Boss in the Malice Canon (Dark Stigma) Raid Events.
- Protagonist in the Dark Stigma storyline.