Boris Cliff wields influence as a manipulative strategist within the Silver Wolf Order, a cult infiltrating Anima City. His striking appearance features long blond hair, a square jaw, and a teal priest uniform layered with a white coat, complemented by a wolf-patterned grayish-blue mask. A corrupted beastman due to Nirvasyl Syndrome, his monstrous form twists into a crimson-eyed, fanged serpent with multiple heads, evoking mythological parallels to Typhon.

After extracting Nazuna Hiwatashi from a research facility post-transformation, he molds her into a weapon, rigorously training her shapeshifting talents. Under his direction, she ascends as the Silver Wolf Order’s wolf-inspired figurehead, Déesse Louve, while he orchestrates the cult’s expansion from the shadows. In Anima City, he exploits crises like Jackie’s witch trial to rally dissenters, securing the Slums as a base. He engineers a clash with Alan Sylvasta, weaponizing Nazuna’s public demonstrations of power to extort sanctuary for the cult.

His relationship with Nazuna oscillates between calculated mentorship and unsettling possessiveness, punctuated by invasive physical gestures that hint at warped desire. As Nirvasyl Syndrome erodes his restraint, this manipulation spirals into violence when he assaults her following her defiance.

Boris’s cruelty extends to provoking Hiromu Yaba during a prison visit, goading him into a beastman rampage. He coldly surveys the ensuing destruction, cementing his commitment to chaos as a catalyst for the cult’s ascendancy.