Cobalt Claw ranks among Panther Claw's elite Four Gods, embodying the diamond suit. Her specific background and powers shift across different portrayals.

In the Re: Cutie Honey OVA, she pledges unwavering loyalty to Panther Claw's leader, Sister Jill, relentlessly pursuing Cutie Honey to earn Jill's favor. She hunts women across the city to draw out Honey, eager for battle. When Scarlet Claw sabotages her mechanical systems during a clash with Honey, Cobalt Claw's malfunctioning nanomachines infect Honey, briefly disabling her. Her combat style utilizes acrobatics, evasion, and mask-mounted tentacles that ensnare foes and discharge electricity.

The live-action film depicts Cobalt Claw murdering Dr. Kisaragi, Honey's father, after he rejects Panther Claw. She expertly employs disguises, adopting a victim's appearance to get close to targets. Her primary weapons are mask-mounted braid-like extensions used for strangulation. If destroyed, she reveals hidden arms by unzipping her jumpsuit, deploying them for attacks and restraints. During a fight with Honey and Inspector Natsuko Aki, she taunts Honey by admitting her role in Dr. Kisaragi's death, provoking Honey's Honey Flash attack that incinerates her.

Her personality consistently combines dedication to Panther Claw's goals, a callous disregard for life, and a fierce enjoyment of combat. She wears a revealing dark blue and purple bodysuit with a distinctive mask featuring tentacles or braids. Both iterations conclude with her death in battle against Honey.