Lisa Isaribi, alias Feeler of the Knights of the Ashen Flame, is a Third Generation pyrokinetic. Orphaned by an Infernal attack in her childhood, she developed a deep trauma surrounding fire. Dr. Giovanni of the White-Clad exploited this, taking her in and implanting an artificial Infernal Bug to activate her abilities. Prolonged brainwashing created intense psychological dependence, forging a paralyzing fear of Giovanni's abandonment alongside her terror of him. Her appearance features light red hair, typically styled with a knot falling into a ponytail and swept bangs, later noticeably shorter. She possesses light burnt orange eyes and dark horizontal tattoos on her upper left arm and right thigh. Lisa's attire evolved: initially a white crop top, dark jeans with the left leg cut off to display her tattoos, a white tool belt with a skull buckle, white gloves, and black clipped shoes. As an Ashen Flame knight, she wore their signature white robe with the Holy Sol cross, gauntlets, and armored boots. Upon joining Special Fire Force Company 8, she adopted their orange jumpsuit worn open to reveal a black crop top, paired with black boots. Lisa's personality reflects conflict and transformation. Initially presenting kindness and loyalty, she formed a close, familial bond with Vulcan Joseph and his apprentice Yū while secretly spying for Giovanni. Her ruthless betrayal involved incapacitating Yū with flames and electrocuting Vulcan, though genuine concern surfaced during her deception, revealing internal struggle. Giovanni's manipulation left her emotionally dependent yet terrified, causing robotic obedience despite moral conflict. Following rescue and recovery, she evolved into a more resilient individual, displaying sarcasm, playfulness, and unwavering loyalty to Company 8. She actively participated in critical missions, crediting Battalion Commander Akitaru Ōbi with saving her from her past. Her pyrokinetic ability generates octopus-like flame tentacles, primarily from surfaces or her waist. These tentacles possess magnetic properties, allowing them to lock onto the bio-magnetic fields of living beings or machines. This trait becomes a vulnerability against opponents disrupting magnetic fields or deploying countermeasures like Extinguishing Grenades. Her combat style emphasizes grappling, constriction, and blunt-force strikes. Key story arcs define her journey: Infiltrating Vulcan's Workshop under Giovanni's orders to find the "Key to Amaterasu," culminating in betrayal; confronting Vulcan and Ōbi as an adversary in the Netherworld, where Giovanni used her as a hostage and abandoned her, leading to her rescue and treatment for severe psychological trauma; integrating into Company 8 during the Haijima Industries arc, though Giovanni's memory sometimes triggered distress; contributing to Ōbi's rescue from the Tokyo Army; and participating in pivotal Great Cataclysm events, where she was resurrected after Shinra Kusakabe rewrote reality. Significant relationships shape her path: Vulcan Joseph offered initial sanctuary and later facilitated her redemption, their bond evolving into mutual trust with subtle romantic undertones. Yū represented an adoptive family connection, intensifying her guilt during betrayal. Dr. Giovanni served as her manipulator and primary antagonist; her eventual confrontation symbolized liberation, though he temporarily weaponized Yū against her. Company 8 became her found family, providing acceptance and purpose. Additional details include her self-perception as a "crybaby," preferences for punk music (influenced by Vulcan), karaoke, science, and animals, dislikes of spicy food and math, the surname meaning "fishing side," blood type O, height of 167 cm (5'6"), weight of 55 kg (121 lbs), shoe size of 25 cm, and a stated dream to marry and have children.