Chapter 1: Heroic Family, Villain's Quirk

Izuku Yagi is not like most kids.

He has social anxiety disorder. He is extremely shy, with low self-esteem, with a lot of negative thoughts, sensitive with criticism and with really poor social skills.

When did it start? Well, it started when he was 5 and his quirk showed up.

Decay is the name of his quirk. A quirk that makes whatever he touches with his hand crumble into dust.

To him it was a cool quirk.

To everyone, a villain's quirk.

For his parents, a dangerous quirk.

He was an outcast in school and at home he was watched to make sure he didn't harm anyone by accident.

He even wasn't allowed to play with her younger sister Sayaka Yagi, in fear he would hurt her.

Naturally, under that cape of anxiety, hate and rage started to grow. He was alone. He is alone. Until she came.

They met in a party hosted by her father. Izuku was forced to go, even with him protesting he wasn't interested. It was hosted by Endeavor, and the Yagi family was invited.

Izuku was sat on a corner as she sat next to him. She had white hair, green, emerald eyes and pale skin. Izuku, was 13 when he first met her.

And he couldn't look away from her smirk as she turned to him.

"Hey. Nice meeting ya. Name's Touya Todoroki." She introduced herself and extended her hand to him.

Izuku starred at her hand and gulped "I-Izuku Yagi..." he said and Touya raised a brow.

"It's rude to leave someone hanging like this." She said and he put his black hoodie over his head.

"I don't want to hurt you..." He mumbled and Touya scoffed.

"Hurt me? With a handshake? Dude no offense, but you don't look all that strong." she joked and Izuku scratched his neck a bit, a nervous habit he developed.

"It's not that... if I touch you with my hand... I'll... I'll..." Izuku stopped when Touya grabbed his wrist, stopping his scratching.

"Stop that. You're hurting yourself." She scolded, a serious look on her face, surprising Izuku. "You don't have to tell me if you don't want. But have you tried touching something, with four fingers?"

"Four fingers? How?" Izuku asked and she rolled her eyes with a smile.

"Like this, you dork." Still holding his wrist, she held his pinky finger with her free hand, leaving it away from the rest of his finger. "Keep it that way." She said and grabbed his hand and shook it.

Izuku's eyes widened seeing that they touched each other. She smirked seeing his surprised reaction "Nice meeting you. Name's Touya."

"Izuku..." Her skin was soft and smooth. He didn't remember that it was like that. Or was with only her?

"Hey, want to go for a walk?" Touya said with a wink and Izuku could only nod dumbly. She stood up and made a motion for him to follow her and he did.

They went to the backyard, where Touya took out a package of smokes and offered one to Izuku "You smoke?"

"I-I never tried before..." Izuku said and Touya smiled.

"There is a first time for everything." She said as Izuku grabbed the smoke and placed it on his mouth. A blue flame came to life on the tip of her finger and light the smoke. "Breath in now..."

Izuku took a breath and felt the smoke come into his mouth. He coughed, not used to the taste and because a bit of the smoke went into his lungs.

Touya smirked and took a puff of her own smoke. Once Izuku stopped coughing, he went to smoke again, this time, he did it better.

They smoked in silence, while watching the stars. "It is a cool quirk..." Izuku said to her and she raised a brow.

"This?" She said lighting her hand "I guess. It is called Cremation. The only bad thing is that it reminds me way too much to the one of my old man." Touya said with a shrug "And what's yours?"

Izuku gulped "It... is called Decay..." Touya made a hand gesture for him to continue "It... makes everything I touch crumble into dust..." He said closing his eyes, waiting for the classic insult or fear.

"Huh... that's cool." Touya said and continue smoking.

Izuku blinked at her direction and smiled "Yeah... I know."

*2 Years Later*

"D-Deku?" Izuku asked Touya that nodded with a smirk.

"It sounds like Dekiru, that it means you can do it. And we both know you can do it." She winked and Izuku blushed and looked away.

"D-Don't say that in public..." Touya hugged his arm and placed her chin on his shoulder.

"C'mon... you need to be more confident." She said and pecked him on the cheek. "Now, give me a cute nickname too."

"Eh... I'm not good with names..." Touya pinched his cheek lightly making Izuku chuckled "What about... Dabi?"

Touya smiled and snuggled to his shoulder "I love it, Deku."

*3 Years Later*

"Let's escape." Dabi said to Deku that raised a brow. They were in the swings at the park at night. Their usual spot.

"Escape? Where?" Deku asked and Dabi shrugged.

"I don't care. But... I can't continue living there... I just can't." She choked a sob and laughed softly "I'm sorry... I shouldn't have involved you in this, Deku. I-"

"Tomorrow night." Deku said surprising her "bring clothes and money. I'll do the same. We're leaving."

Dabi smiled and jumped to hug Deku, throwing him off the swing, and leaving them both on the ground.

The next day, Touya Todoroki and Izuku Yagi disappeared. I their place, were the vigilantes, Dabi and Deku.

The next time, Deku would meet his family, would be in two years.

Next Chapter: Join or Die