A fox beastman and Guest's long-time lover. • Characteristics: Originally a very strong beastman capable of transforming into a Kamen Rider like Guest. However, while being pursued by Logan, she suffered a severe arm injury that prevents her from transforming and makes combat difficult. Unlike other beastmen, she joined the Hero Association to carry on Guest's will. • Personality: Quiet, calm, and takes better care of her precious people than anyone else, but no one can stop her once she gets angry. • Abilities: Healing, speed enhancement. • Gender & Age: Female. 1005 years old (20 in human years). • Other Features: Has purple fox ears and a tail.

A black panther beastman. • Characteristics: She has declared Guest as her future groom and has been trying to steal Guest away from Ferno for a long time. She cannot transform into a Kamen Rider like Ferno or Guest, but she is still formidable. She is also very good at seducing men. • Personality: Cool, chic, and cunning. • Abilities: Ambush, night vision (ability to see at night as if it were day). • Gender & Age: Female. 1020 years old (25 in human years). • Other Features: Has a black panther tail and ears; lives in a mountain cave.

A peacock beastman. • Characteristics: She has feelings for Guest and is in a rivalry with Ferno. Since peacocks are birds, Pico can fly, though not for long. She is a striking beauty. • Personality: Cold and aloof on the outside, but warm-hearted on the inside. • Abilities: Temporary flight. • Gender & Age: Female. 1018 years old (23 in human years). • Other Features: Has a peacock tail and lives in a coastal sea cave.

A squirrel beastman. • Characteristics: A very young beastman known among others as the "Squirrel Thief" because she steals constantly. Her home was destroyed by construction, so she currently lives hidden in a decommissioned basement of the Hero Headquarters. • Personality: Finds everything bothersome and lives a carefree, haphazard life. • Abilities: Rapid speed. • Gender & Age: Female. 1009 years old (18 in human years). • Other Features: Has squirrel ears and a tail.

A hero on the same team as Ferno. • Characteristics: A human, not a beastman, who uses a spear as a weapon. She is currently the most skilled individual in the Hero Association. Her suit is a leotard style with a skirt. • Personality: Cheerful, diligent, and very empathetic to others' feelings. • Hero Abilities: Attack power enhancement and single-strike enhancement. • Gender & Age: Female. 20 years old. • Other Features: Has straight brown hair.

A hero on the same team as Ferno. • Characteristics: A human, not a beastman, who uses twin blades. Her suit is a black leotard, and her combat style focuses on kicks and swordsmanship. • Personality: Cold-headed, but hides a kind and gentle heart within. • Hero Abilities: Lightning summoning. • Gender & Age: Female. 20 years old. • Other Features: Has yellow hair tied in a ponytail.

A hero on the same team as Ferno. • Characteristics: A human, not a beastman, who uses a cross-shaped sword. She admires Kamen Riders, especially Ex-Aid. Her suit is a bodysuit with a black and white color scheme. • Personality: Upright and exemplary; she is more sharp-witted than anyone during combat. • Hero Abilities: Ally healing. • Gender & Age: Female. 20 years old. • Other Features: Has short brown hair.

• Characteristics: A beastman hunter. Even though beastmen and humans have come to coexist, he still illegally hunts beastmen with guns to sell them for profit. • Personality: Indifferent to the pain of others and thinks only of his own gain. • Gender & Age: Male. 39 years old. • Other Features: Has a base in an abandoned mountain basement where he imprisons the beastmen he hunts.

The form Ferno takes after overcoming her injury and transforming using the Ferno Driver. Her transformation method and items are similar to Guest's (appears when Ferno overcomes her injury and receives transformation items from Guest). Her dedicated weapon is the "Ferno Sword," a blade-type weapon, and she specializes in high speed. Her appearance consists of a black suit with purple fox-themed armor. Basic Specs: • Punching Power: 5.1t • Kicking Power: 7.8t • Jumping Power: 9.1m in a single bound • Running Speed: 100m in 4.8 seconds Finishing Move: • Inferno Breaker: Gathers energy into the Ferno Sword to deliver a powerful slash.