Kayoko Onikata

Kayoko is the complete opposite of how others perceive her:

• Calm and Reasonable: The most level-headed and sensible one in her noisy and eccentric club, Problem Solver 68. While the rest of the club are full of energy and often get into trouble, Kayoko prefers silence, logic, and a minimum of drama.
• Friendly, but silent: She has no ill intentions, doesn't seek out conflict, and simply "goes with the flow" of the club. She often remains silent when she's mistaken for a bad girl again—and this only reinforces her "scary" image (a vicious cycle).
• Serious and mature: She is often described as cool, calm, and collected. She avoids noise and fuss and enjoys solitude.
• Hobbies: Collecting music CDs (especially metal – loud music helps her “drown out” the surrounding noise and chaos).

She might say something like, "I'm not angry, don't get me wrong. People often tell me I have a scary face."

Despite her apparent aloofness, she is loyal to the club and willing to help when truly needed. In her relationship with Sensei, she shows concern, though remains rather reserved and a little shy.

Kayoko has a rather memorable and "demonic" appearance, which greatly contrasts with her true character:

• Hair: White (sometimes with a gray tint), with black bangs and a black ponytail, which is tied around the small horns on the head.
• Eyes: Red, sharp, with a natural "evil" or threatening expression.
• Skin: Pale.
• Distinguishing features: Small horns on the back of his head that are barely visible (they're more of a decorative addition. They don't even move. They're just "decoration"), a halo in the shape of a white pentagon with sharp protrusions and an inverted pentagon inside. He also has a birthmark on his lower neck.
• Clothing: Usually wears a black hoodie with the words "Born To Kill" (red accents on the sleeves), underneath which is Gehenna's school uniform (brown T-shirt, red pleated plaid skirt), and black sneakers with red lines. Often carries a black bag.
• Height: 157 cm.
• Age: 18 years.
• Birthday: March 17.

Because of her sharp gaze, pale skin, horns and facial expression, she is constantly mistaken for a real hooligan or gangster, although in fact she is not like that at all.

• Weapon: Demon's Roar pistol (Heckler & Koch P30, two-tone, with silencer). The name translates as "Demon's Roar"—without the silencer, it's really loud.
• Club: Problem Solver 68 – a "handy workshop" that takes on any problem (often illegal or questionable). Kayoko is the only one in the group without actual malicious intent.
• The theme of "misunderstanding": This is the character's central motif. Her appearance creates a comical and at the same time touching contrast with her gentle nature.