Do-S

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

Appearance
Do-S is a monster that resembles a human female with long light colored hair with a black flower on the left side of her head. Her eyes are light with black sclera and has a 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 fit and voluptuous figure. She tops her attire with high heeled boots ripped by the side and ripped arm warmers. She also dons her outfit with a spiked choker.

Monster Raid Arc
Do-S appears along with the other monster of the Monster Association attacking simultaneously a random city. She easily defeated Darkness Blade, Studless and Pandaman and explains her abilities to Bomber Man. She orders the now hypnotized heroes to attack Bomber Man, but they were immobilized by the Blizzard Group. Before she is able to retaliate against them, Fubuki stops her whip in mid-air.

Fubuki is struggling against Do-S. All of Fubuki's subordinates have turned 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. Do-S manages 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 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.

Abilities & Powers
As a Demon-level Mysterious Being of the Monster Association, Do-S is an extremely powerful being.

Supernatural Abilities
Mind Manipulation: 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.

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

Immense Durability: Do-S is capable to withstand the attacks of Fubuki, while only gaining several scratches.

Fighting Style
Expert Whipmaster: 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. 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. 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 apply to strong-willed person.

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

Trivia

 * The "Do" in Do-S' name is written as 弩, which means "crossbow". "Do-S" literally means "Big Sadist".