Invulnerability, super strength

Diana had been a normal girl for most of her life, but one day as she worked as a Fire Fighter, a roof had collapsed onto her. Her colleagues rushed to her aid, but were shocked as she lifted the rubble off her body, and seemed completely unhurt. Once they rescued everyone and got out safely, doctors showed that she was completely healthy. Everyone assumed the rubble had been weakened due to the fire, so it wasn't very heavy. She just got very lucky that day.

Later, she chose to work on her strength training just in case she ever was in such a position again, she wanted to be able to help herself or the men she worked with if they weren't as lucky. She was already pretty lean and trim, but still very much had a feminine physique. She envied the women with defined abs and huge arms, and decided that was her goal. She went to a gym to see how much she could bench, and was shocked as she kept placing heavier weights onto the barbell without ever finding her limit after being able to effortlessly lift them. She put the weights away and began to question what she was experiencing.

One night, she was accosted by a mugger at night, who thought she was a weak woman. She didn't know how to fight, but figured she could fight him. She pushed him away, and he swiped with his knife. She felt it hit her hand, and she punched him in the gut, making him fall to the ground in agony. She looked at her hand that got hit by the knife, and didn't even see a scratch. She decided to test her theory and picked up the knife. She tried to cut her finger, but the knife bent! She then used it to cut off a few strands of the mugger's hair, and then tried to cut off her own hair, and it still cut.

"Huh." She said before stabbing herself.

Well, she tried. As it contacted her skin, the blade broke off the handle, falling to the ground in pieces. Diana stood up and ran away, not sure what to believe.

Months later, she began to get more reckless at work, but she never got hurt. She was able to save more people and even save her coworkers a few times. She then decided to try her hand at becoming a vigilante. She bought a police scanner and waited for something simple.

A break in at a local clothing store seemed easy. She drove over and found the criminals still inside. She ran up to one and kicked his shin, and gasped as she saw the leg break. The man screamed, alerting his buddies. They turned and saw the unassuming woman in their midst. They pointed handguns at her to hopefully intimidate her into standing down. She walked forward, and one of them shot her leg. She grabbed at where the hole in her pants was, and saw no blood or wound. She saw the bullet smooshed into a mushroom shape was next to her foot.

"I'm bulletproof? Okay, you guys are gonna regret ruining my pants!" Diana yelled as she ran forward and punched each of them, pulling her punch to only injure them. They slumped over and groaned. She stood triumphant until she heard police sirens. She quickly found a scarf and wrapped it around her face. She told the officers she apprehended the criminals, and ran off before they could ask her who she was.

As the months went by, she changed tactics. She wore a mask to conceal her identity, and wore smaller clothes for both mobility as to lower the possibility of destroying her outfit from knives and bullets. However, as weeks went by, she decided to throw modesty away and just wore a mask, gloves, and boots. She slowly became known as the Masked Nudist amongst the criminal world, a name she hated. She didn't like having to be naked, but was at least happy that no one knew her secret identity. If her identity got out, she would be embarrassed that so many people know what she looks like naked.

Wanting to take control and make sure everyone knew her chosen superhero name, she then decided to go for a bigger public scene and was able to expose a cartel, apprehending the leader as well as information about their entire supply and distribution structure. The police and the public now knew who she was. She left a note, calling herself...

THE MASKED AVENGER