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Withered Sprout (やせ細りモヤシ, Yasehosori moyashi; Viz: Scrawny Bean Sprout) was a Tiger-level monster. The Surly Brothers estimated the monster's disaster level to be Dragon. He was killed by Saitama.[1]


As his name suggests, Withered Sprout resembled a humanoid version of a bean sprout. He was quite short and skinny, with thin arms and legs, and had an overall weak appearance.


Withered Sprout shows his true colors

Withered Sprout acted weak in order to trick heroes into thinking that they could easily defeat him. He acted timidly, but showed his true personality once he had shown his true power.

His true personality was being intent on killing heroes and using sneak attacks to defeat them, displaying a rather pathetic and cowardly side to him. He would lie in order to get heroes by surprise.

Appearances in Other Media[]


Disaster Level[]

Withered Sprout is seen in Z-City when the Surly Brothers show up. Withered Sprout pretends to be scared and is attacked by one of Angry Man's attacks, but quickly freezes him. Withered Sprout still acts weak, but manages to defeat Crying Man and Smile Man. Saitama later passes by and Withered Sprouts still acts weak, but uses a sneak attack on him. After Saitama easily breaks his glaciers, he attacks him again only to be killed by Saitama's punch.

Abilities and Power[]

Withered Sprout traps Smile Man in a massive ice spike

Having been estimated to be a Dragon-level threat, Withered Sprout is a powerful monster. He was able to easily defeat the Surly Brothers, which included the A-Class hero Smile Man.

Supernatural Abilities[]

Ice Manipulation: Withered Sprout had an extremely potent cold touch in which he could easily freeze objects or heroes by surprise. He was able to freeze the Surly Brothers and their weapons with little effort. He was later able to freeze Saitama, though the hero was able to easily break free. This power is not limited to objects or beings, as the surrounding area was also frozen when Saitama arrived.


  • Jumping Spider and Withered Sprout are the only Mysterious Beings who were officially considered with three different disaster levels.
    • He was first considered to be a Wolf-level threat, due to his cowardly nature and weak looking appearance.
    • He was considered a Tiger-level threat by the Hero Association after being defeated instead of a higher threat level in order to prevent "destroying the balance of the pro hero world".
    • He was suggested and considered to be a Dragon-level threat by a Hero Association staff member and Smile Man, but not officially registered as one.


  1. One-Punch Man Omake; Disaster Level


Mysterious Beings
Dragon (or higher) Boros Orochi *
Demon 170,000-Year-Old Cicada Larva 170,000-Year-Old Cicada Adult Armored GorillaAwakened Cockroach Baquma Beast King Bruinado Bug God Building Booper Deep Sea King Demonic Fan Devil Long Hair *Do-S *Eyesight Face Ripper Fist Fight Djinn Free Hugger G4 G5 Game-Berus Giant Crow Grizzly Nyah Hundred-Eyes Octopus Jumping Spider Macho Daikon Mosquito Girl Rafflesidon Rhino Wrestler Royal Ripper Scaledon Senior Centipede Showerhead Sky King Subterranean King Super Mouse Surprise-Attack Plum The Great Food Tub The Three Crows Unihorn Vampire (Pureblood) 
Wolf Himawari Hotdog Messenger of the Seafolk Piggy Bancon Tongue Stretcher
Less than Wolf
Unknown Alien Seer *Ancient King Angry Grandpa Autumn Phantom Red Golden-ringed Dragonfly *Benpatsu *Choze DarkDark Matter Gunner Eagle Enamel Evil Eggs Evil Eye Evil Natural Water *Falcon Fish of DarknessGale Giant Salamander Gigakigan Goddess Glasses Gyoffrey Hamukichi *Haragiri Hawk Hellfire Junior Centipede Kite Lord Great White ManakoMen's Esthetician Man *Platinum Sperm Rosie Raptora *RepteraSage Centipede Suppon Sword Devil Executioner Venus Mantrap Volten *