Koyama (誇山, Koyama) is an Esper and a former member of Claw. He was part of the upper echelon called "Scar".

He bears a mohawk mirrored by a goatee, a diagonal scar across the center of his face, a lip ring, three earrings in each ear, and a blatant lack of eyebrows. He is prideful, reckless and easily frustrated. He has no qualms about using violence against kids.

Koyama was assigned to capture Ritsu. When he got his hands on Ritsu, Mob intervened and beat him up severely. Before Mob could defeat him, he used Sakurai's cursed perfume to put him to sleep, then quickly escaped with Ritsu. Later, he encountered Mob at the base of Claw's 7th Division and instigated a completely one-sided battle, which he almost immediately lost.

Later, he decided to work together with Reigen and his allies to combat Claw's world domination plan.

Power and Stats

Tier: Likely 8-C

Name: Koyama

Origin: Mob Psycho 100

Gender: Male

Age: Unknown

Classification: Esper, Terrorist (Former)

Powers and Abilities: Superhuman Psychical Characteristics, Skilled Brawler, Telekinesis, Energy Manipulation, and Barrier Creation

Attack Potency: Likely Building level (Should be comparable to Ishiguro but to a lesser extent, and easily defeated base Mob)

Speed: At least Subsonic, Possibly Supersonic (Surprised attacked an 100% Mob)

Lifting Strength: Unknown

Striking Strength: Likely Building Class

Durability: At least Building level, likely Higher ( Was able to stand up after a brutal assault from an 100% Mob , though it should be noted that even during there fight he was still minorly holding back to prevent killing Koyama)

Stamina: High

Range: Standard melee range

Standard Equipment: None

Intelligence: Average

Weaknesses: Is reckless and tends to simply dive into combat , is hinted to have motion sickness.

Telekinetic Helix

Notable Attacks/Techniques:

  • Telekinetic Helix: Koyama concentrates and revolves his psychic energy around his limbs and extremities to allow him to penetrate psychic barriers.
  • Energy Bomb: A sub-technique of Telekinetic Helix, Koyama concentrates and revolves his psychic energy around his arm and then attacks with a strong lariat into the target's stomach.


Notable Victories:

Notable Losses:

Inconclusive Matches: