Iaian

• First Appearance
• Current

“	You think I wouldn't notice such killing intent?	„
	~ Iaian to Melzargard after dodging his attack

“	Then how about I bring Garou to justice, as Master's number one disciple? If I can prove that I'm stronger than him that'll make Master happy too.	„
	~ Iaian

Summary

Iaian is the A-Class rank 2 hero of the Hero Association and a disciple of the S-Class hero Atomic Samurai. He wears Western armor and specializes in Iaido. His left arm was blown off by an alien, and he has been a one-armed man ever since. He and the other two students of Atomic Samurai, Okamaitachi and Bushidrill, are all immensely powerful swordsmen. The three of them together can even defeat stronger Demon-level threats. Still, they cannot advance to S-Class because Sweet Mask, an eligibility examiner of S-Class, judges them to be unworthy. Nonetheless, Iaian is aware of the fact and still tries his best to become stronger.

Powers and Stats

Tier: Low 7-C | High 7-C

Key: Pre-Monster Association Arc | Monster Association Arc

Name: Iaian

Origin: One-Punch Man

Gender: Male

Age: 23

Classification: Human, Swordsman, A-Class Hero Rank 2, Atomic Samurai's disciple

Powers and Abilities:

• Superhuman Physical Characteristics
• Expert Swordsman (Is the number one disciple of Atomic Samurai, his sword speed being described as the fastest among the three disciples. He specializes and is an expert on Iaido)
• Enhanced Senses and Extrasensory Perception (Iaian can sense murderous intent, allowing him to block or evade attacks even if he doesn't have sight of the attacker)
• Analytical Prediction and Instinctive Action (While having his eyes closed and relying only on his ability to sense killing intent and his reflexes he could successfully predict, defend against, and destroy thousands of attacks from Devil Long Hair)
• Minor Fear Manipulation (According to the databook when Iaian releases his killing intent in a burst normal monsters get "paralyzed with fear")

Attack Potency: Small Town level (Fubuki described the Three Swordsmen as being worthy of S-Class making him stronger than the likes of Lightning Genji and A-Class heroes with combat power close to S-Class) | Large Town level (Didn't seem to be fazed after learning Garou had beaten Tanktop Master and wished to face him. Fought, damaged and knocked out the Narinki’s Private Squad mercenaries, who can harm Pig God. Capable of breaking through Tatsumaki's barriers, which withstood a blow from Black Sperm and gave Gums some trouble)

Speed: Supersonic+ (Dodged an attack from Melzargard) | High Hypersonic (Cut in half and outpaced several bullets in an instant. Able to react to and deflect Evil Natural Water water jets, kept up with Black Sperm clones. Held out against Homeless Emperor's Extreme Carpet Bombing for a while alongside Spring Moustachio.)

Lifting Strength: Unknown | Likely Class M (Completely stopped Rhino Wrestler's charge with just one arm, should be comparable to Bushidrill who could directly clash and overpower two Narinki Mercenaries at the same time)

Striking Strength: Small Town level | Large Town level (Should be comparable to his attack potency)

Durability: Small Town level | Large Town level (Should be comparable to his striking strength. Can damage and knock out the Narinki Mercenaries who can harm him)

Stamina: Superhuman (Endured the pain of his arm being destroyed by Melzargard and seemed to not be in pain shortly afterward. Went through a long day of fighting during the Monster Association raid with little to no rest. After experiencing a crushing defeat against Evil Natural Water that left him incapacitated for a while, he mustered the strength to stand up again to save the Narinki Mercenaries from being crushed as Tatsumaki lifted the Monster Association. Upon reaching the surface, he confronted an even stronger and faster Evil Natural Water, fought millions of Black Sperm clones, and held his ground for a while against Homeless Emperor's Extreme Carpet Bombing.)

Range: Extended Melee Range with Katana

Standard Equipment: His Katana and Armor

Intelligence: Gifted (Highly knowledgeable in combat and is an expert swordsman. During fights he tends to take on a leader role and quickly points out the enemy weak points or the most effective way to face them. He tried to do this when the S-Class Heroes were facing Melzargard, suggesting to retreat and find an alternative way to deal with the regenerating monster but none of them would listen to him. Has a bit of a stubborn side. In his battle with the Rhino Wrestler, he was chastised by his master for insisting on inefficiently cutting off Rhino Wrestler's horn, the most durable part of the monster)

Weaknesses: None notable | At the moment has one arm, but it is unknown if this has actually negatively affected his fighting skills

Notable Attacks/Techniques:

• Hissatsu no Iai: Also known as "Iai of Certain Kill," this technique is a furious combination of various sword slashes and attacks known for its tremendous speed.

Hissatsu no Iai as shown and described in the guidebook

Gallery

S1 render

Iaian upon losing his arm to Melzargard

Iaian with his helmet, before losing it as well

Notable Matchups

Notable Victories:

Royal Ripper (One-Punch Man) Royal Ripper's Profile (Speed was equalized)

Notable Losses:

Raiden (Metal Gear) Raiden's Profile (Raiden was in his MGS4 key and Iaian was in his current key. Speed was equalized and battle took place in a plain grass field)

Speed-o'-Sound Sonic (One-Punch Man) Sonic's Profile (Speed was equalized and both were at their strongest)

Inconclusive Matches:

Discussions

Discussion threads involving Iaian