Fubuki

Fubuki (雪不帰) is the main antagonist from Senran Kagura Shinovi Master: New Link and it's anime adaptation.

Background
Fubuki is the unlikely offspring of a human Shinobi and a Yōma. Her mother was hunted down by all Shinobi, including her own father, who convinced his superiors to be allowed to seal his lover in exchange for Fubuki's safety. Fubuki, still a child, witnesses as her father uses the forbidden Fuuma Kourin technique, sealing her mother but dying in the proccess. Fubuki is rescued by Rasetsu, another Yōma, who attempts to run away with her despite being severely injured. The two are approached by Kurokage, who adopts Fubuki until Rasetsu can recover, taking her to live with his own granddaughter Yumi. When Rasetsu returned, Fubuki left with her and parted ways with Kurokage and Yumi, living the rest of her life in hiding, having already decided she would take revenge on all Shinobi.