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"Monster Princess" Do-S (怪人姫弩S, Kaijin Hime Do S; Viz: Monster Princess Super S) was a Demon-level Mysterious Being and a member of the Monster Association.


Do-S is a monster that resembles a human female with long, blonde hair with a black flower on the left side of her head. She has a very attractive body, with a large chest and wide hip. Her eyes are light (pink in Anime) with black sclera and has a pink, heart-shaped symbol on her forehead, as well as many piercings on both ears. She dresses in a BDSM outfit made of straps and held by metal rings revealing her figure and accentuates her curves; during certain scenes, it's shown she has well-endowed abdominal muscles. Her attire is adorned with high-heeled boots, ripped by the side and ripped arm warmers. In addition, she also dons a mask with an S-symbol over the filters as well as a spiked choker. Her unmasked face has fangs and a long, flexible, slimy tongue.

Personality Edit

Like her appearance and attire suggests, Do-S acts in a similar manner to that of a sadistic dominatrix and princess like whipping at her opponents and expecting them to follow her orders to the letter. She is also a sadistic being and also likes to toy with opponents she finds amusing, like Fubuki and suggests on using her against Tatsumaki. When injured enough in a fight, she abandons her dominatrix persona and becomes a ruthless fighter intent on destroying her opponent. When a fight falls out of her favor, she is willing to resort to desperate measures or cowardice, lashing out in desperation, then groveling to Sweet Mask, or sacrificing her slaves to flee from Tatsumaki. She's even willing to offer her services and accept powerful opponents as her master when truly cornered.

While normally acting dominant, Do-S is proven to be submissive and shrewd when faced with individuals more powerful than her like Orochi, quickly making excuses to avoid punishment from the Monster King after failing to kill Tatsumaki and Fubuki. She's always eager to add more slaves to her army, jumping at the opportunity to subjugate Nanriki's Squad and Atomic Samurai's disciples.


Human Monster SagaEdit

Monster Raid ArcEdit

Do-S appears along with the other monsters of the Monster Association simultaneously attacking a random city.[1] She easily defeats Darkness Blade, Saturn Man and Pandaman and explains her abilities to Dynamite Man. She then orders the now hypnotized heroes to attack Dynamite Man, but they are immobilized by the Blizzard Group. Before she is able to retaliate against them, Fubuki stops her whip in midair.[2]

Do-S Angry

Change of plans

Do-S was overpowering Fubuki and managed to turn all of Fubuki's subordinates into love slaves. While Fubuki tries to hold off Do-S's love slaves, Do-S's whip eventually manages to pierce through Fubuki's telekinesis and hit Fubuki.[3] Do-S manage to hit Fubuki multiple times. Believing that she has Fubuki's mind under her control, Do-S approaches Fubuki and tells the hero about her plans to lure Tatsumaki out. Enraged, Fubuki sends Do-S flying back. Before Do-S could get a hold of the situation, Fubuki uses Hell Storm, which slightly injures Do-S. As it turns out Fubuki did not succumb to the monster's mind control, Do-S changes her plans and decides to kill Fubuki instead of using the hero to lure Tatsumaki out. Fubuki tells Do-S that her sister would come anyway.[4]

Do-S Scared

The hero that instills fear into monsters

Tatsumaki causes an explosion in the city where Do-S and Fubuki are fighting. Do-S realizes the mistake she has made and immediately tries to make an escape plan. A monster falls in front of Do-S asking for help and warns her of Tatsumaki. Tatsumaki finally arrives and immediately tells Fubuki to go home and that she will handle the rest. Do-S orders her love slaves to attack Tatsumaki as a distraction as she escapes. Tatsumaki immobilizes all of the love slaves, but Do-S manages to escape.[5]

Do-S demise

Do-S's final moment before Sweet Mask ends her life.

Monster Association ArcEdit

Back in Monster Association Headquarter where Orochi executes Awakened Cockroach by devouring him mercilessly due to the latter's failure on defeating Genos, Do-S was about to be executed. Thankfully, she is spared on behalf of Gyoro Gyoro's request to Orochi.[6]

After the Monster Association managed to recruit the Hero Hunter, Garou, G5 joined into the organization’s ranks after capturing Narinki's Private Squad. Do-S prevents Royal Ripper from murdering the squad and proceeds to brainwash the squad members under Gyoro Gyoro's orders.

She later encounters Atomic Samurai's disciples and commands Narinki's Squad to fight them off until Sweet Mask intervenes and asks the disciples to leave so he can finish her off himself. After Sweet Mask ruthlessly slaughters the entire squad, Do-S tries to control him with her whip, but to no effect. She then surrenders to Sweet Mask and frantically begs for mercy, even promising to become his slave. Sweet Mask is unmoved by the monster's pleas and takes her life.[7]

Abilities and PowersEdit

As a Demon-level Mysterious Being of the Monster Association, Do-S is an extremely powerful being. She was able to give Fubuki a tough fight, albeit by splitting her focus. Gyoro Gyoro mentioned that her unique abilities might give more advantages to the Monster Association, unlike fellow Demon-level Awakened Cockroach.

Supernatural AbilitiesEdit


Darkness Blade becoming Do-S's love slave

Mind Control: Do-S possesses the ability to control the minds of others. She achieves this by hitting them with her whip. Those who are controlled by her, have heart-shaped pupils and are referred as her "love slaves". However, people with strong willpower can resist this power. So far it seems that Do-S needs to strike her victims with her whip in order to control them or it just might be her preference. Gyoro Gyoro noted that this unique ability of hers would give the Monster Association more advantages if she is left alive.[8]

Physical AbilitiesEdit

Enhanced Strength: Do-S possesses the raw power to send several people flying with just a crack of her whip.[9] Her whip attacks were noted to be very heavy by Fubuki.[10] Her whip attack eventually pierced through Fubuki's telekinesis when Fubuki was holding off Do-S's love slaves.[11]

Enhanced Durability: Do-S is capable of withstanding the psychic attacks of Fubuki, while only gaining several scratches.[12]

Enhanced Speed: Do-S is able to escape Tatsumaki after using her love slaves as a distraction.[13]

Fighting StyleEdit

Expert Whip Specialist: Do-S has shown great skill with her whip in combat. She is able to dish out multiple hits with just a single crack of her whip.[9] Do-S uses hypnosis in unison with her whip in combat.

  • Heart ♡ Hard ♡ Hit (ハート♡ハード♡ヒツト, Hāto ♡ Hādo ♡ Hitto): Do-S cracks her whip, sending out multiple slashes at once. This attack is capable of knocking multiple people back many meters.[9] Those who are hit by this attack become her love slaves, which she can control freely and make them usually do her bidding. Despite that, this power is not applied to a strong-willed person.


Do-S whipping

Do-S using her spiked whip in combat

Spiked Whip: Do-S wields a spiked whip that turns victims struck by it into love slaves, who are people that will blindly serve Do-S until they die, with a special stimulus.[14]

Major BattlesEdit

Participants Chapter(s) Episode(s) Result
Do-S vs. Dynamite Man, Darkness Blade, Saturn Man, and Pandaman 61 Episode 17 Win
Do-S vs. Fubuki and Blizzard Group 61, 64, 65 Episode 18 Win against the Blizzard Group, later interrupted by Tatsumaki
Do-S and Narinki's Private Squad vs. Atomic Samurai's Disciples 102 None Interrupted by Sweet Mask
Do-S and Narinki's Private Squad vs. Sweet Mask 103 None Do-S and Narinki's Private Squad are killed


  • The "Do" in Do-S' name is written as 弩, which means "crossbow". "Do-S" literally means "Big Sadist".
  • It was first revealed in a stream that Do-S was a newcomer.[15] Do-S replaced Goddess Glasses's role in the webcomic due to being a design from another mangaka back when ONE was still unemployed.[16]


  1. One-Punch Man Manga; Chapter 59, page 23
  2. One-Punch Man Manga; Chapter 61, page 3-10
  3. One-Punch Man Manga; Chapter 64, page 27-36
  4. One-Punch Man Manga; Chapter 65, page 2-12
  5. One-Punch Man Manga; Chapter 65, page 11-21
  6. One-Punch Man Manga; Chapter 79, page 34-36
  7. One-Punch Man Manga; Chapter 103, page 7-12
  8. One-Punch Man Manga; Chapter 79, page 35
  9. 9.0 9.1 9.2 One-Punch Man Manga; Chapter 61, page 3
  10. One-Punch Man Manga; Chapter 64, page 30
  11. One-Punch Man Manga; Chapter 64, page 36
  12. One-Punch Man Manga; Chapter 65, page 11
  13. One-Punch Man Manga; Chapter 65, page 12
  14. One-Punch Man Manga; Chapter 61, page 5
  15. One-Punch Man Stream; 12/1/2016
  16. One-Punch Man Stream; 2/6/2018


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