Disclaimer: I don't own anything.

AN: Remember, slow and steady, two powerful tsunderes (biribiri and lolicon) are hard to break.

Accelerator had just arrived from his apartment. He had been ambushed earlier by a group of weak espers in an alley. The albino had beaten them without remorse or breaking a sweat. But he made sure they were still alive (not that it mattered losing a handicap match). On the way back he dropped by a convenience store and bought eight cans of coffee. Some kid with electromaster ability ran past him as he got out of the sliding doors and it spilled over his black and white shirt. Usually he would have attacked the kid but thought better of it.

He peeked into Last Order's room and found her sound asleep. Nobody seems to be home. Aiho has Anti-Skill business and Kikyou had gone to the research laboratory to get something. Sighing, he slumped on the couch lazily. His neck hurts.

"Nothing like aspirin can't fix…" he muttered.

The albino was glad he could finally have some peace and quiet but somehow it just felt empty and dull. He lay on his back and stared at the ceiling which has patches of scorch marks.

A week ago he invited Misaka Mikoto to talk. They had achieved their maximum mutual agreement and when a nice conversation unrelated to magic or science was about to unfold. However it was interrupted by the sound of cussing and the door hitting the wall. The two Level 5 esper stared at Worst. She barged in wearing a pink sundress that he was sure she didn't like with Yoshikawa lagging behind. Yomikawa carried the rest of the bags and was absolutely pissed off. Seeing the Railgun however brought questioning looks at the albino.

"Misaka-san, what are you doing here?" Aiho asked in her professional tone.

The ginger haired girl didn't exactly know what to respond without getting judged. She smiled and fiddled with the end of her sweater.

"You see, I was…I was-" she was cut off as Accelerator stepped in and started scolding them for leaving him alone with the brat.

"No, I invited her! The reason is none of your business! Especially you!" he pointed at Worst whose eyes are directed to the original.

"Well, we can certainly respect that Accelerator-san. No need to be antsy." Kikyou said placing the things they got from District 7. "Phew! I can't believe we got to buy her so many clothes…"

"I think I better go…I still have some stuff to do," the ginger haired girl said and offered her youngest imouto a smile, "I'll see you and you too Yomikawa-san." Misaka glanced at him.

"Thanks…Accelerator,"

"Hn, what the hell are you thanking me for? Get out." he said indifferently.

Worst tried to stop her but she was already at the door. The electromaster had gone without a trace.

That evening Worst was having a tantrum. As earnest as she was of her feelings, Worst wanted to see her Onee-sama badly. It started with the negative emotions that morning from Last Order wanting to come with them. With no outlet but herself Worst just let her anger lash out.

"It's unfair! Misaka demands equal rights! Last Order gets all the attention even from Onee-sama! Misaka complains of the ill treatment! It hurts! It hurts!"

And when she saw Last Order's crying face she just burst into frenzy. The Level 4 Sister started stripping herself in anger and Accelerator wheeled Last Order into safety while Kikyou used a cloth with chloroform to knock her out. Last Order knew Worst just had it bad and that she didn't mean those things. Accelerator reassured her as well.

Worst. Worst. Where the hell is that woman? The albino shrugged and smelled the coffee stain from his shirt. He took an extra shirt from his room and headed over to the bathroom. When he turned the knob he got a full view of Worst's naked body. She whirred around in surprise then smiled deviously.

"Tou-san, care to join me? Misaka feels bad for shouting at all of you some days ago so she offers Tou-san a once in a life time opportunity."

His eyes couldn't look away as droplets of water run down her female curves. Accelerator staggers back.

"W-worst!" his face was a bright shade of red, "L-lock the door dammit!"

"Tou-san, don't pretend you don't like what you see! Misaka retorts shamefully as she posses and touched herself. After all, you saw Last Order naked. In any case Misaka has a more developed body and the same body as Onee-sama, right Tou-san? Mi…sa…ka…says as she tries to seduce…"

Accelerator glared at her but then covered his eyes as it was about to land on something. He slammed the door on her and decided now's the best time to drink the coffee to relieve his nerves.

But he could hear her laughing behind the door.

"Was that a no? Misaka saw something went up!"

"Obscene bitch…" he sighed and goes to the kitchen. One of these days he might just kill himself (it didn't work). But then again-

Same body, huh?

As he took a sip Accelerator sputtered at his own thoughts. What the hell am I thinking!? Damn bitch! He dismissed it as a spur of the moment (though his face was still red) and went to get some leftovers.

Meanwhile Last Order had woken up from all the commotion and got up to investigate. She saw Accelerator in front of the fridge stuffing his mouth. When he didn't seem to notice her presence she jumped at him from behind. The albino shocked at the impact choked on an egg roll.

"Accel-chan~! Accel-chan! Misaka Misaka expresses her happiness and hugs him tightly. Are you alright? Misaka Misaka will go get Worst-chan!"

"Fuck nooo! Water! Let go brat!"

He got out of her lock and reached for the sink. The little girl watched as he gulped gallons of liquid directly from the tap. It took him a minute to calm down his coughing and glared at the little girl. Accelerator was about to say something but nothing came to mind and picked up his crutch which had fallen off.

"So much for peace and quiet. I hardly get any…"

They went back to the living room and sat in the couch. Last Order turned on the TV and cuddled next to him. Once Worst was out of the bathroom she frowned at the scene.

"Don't. Say. A. Fucking. Word." he said before she could open her mouth.

Later that day Worst had emptied his entire batch of coffee just to annoy him. He had to go and resupply as it or he'll completely lose what's left of his sanity. And yet he didn't want to go out. It was nice just sitting there with Last Order leaning against him. Worst tried resting her head on his lap but when he refused she accused him of being a pervert.

"Whose screw is loose!?" he yelled back.

Several hours later he found himself in District 17. What the hell was he doing there? Right, he was going to see Kamijou Touma but he ended up here where he first met the bastard and lost.

"This is fucked up…" he muttered.

When he left the apartment Worst kept bugging him to bring her along. That was the last thing he'll ever do. That woman is a walking pile of destruction, obscene destruction (besides him). And when that didn't work she asked him about Misaka Mikoto. He refused to talk even though Last Order was intrigued to. It's none of their business. When Yomikawa arrived to get them off his back Worst demanded that the Railgun should see her imouto, him included.

Somehow being near the cargo storage bay made his whole being quake with fear. Why did he develop such sadistic ways in killing the Sisters? Why indeed? He did wish that Last Order's theory was right. That being ruthless was his way to get them to back off in the experiment. But he knew what his intentions were. For power. All for power. And in the end he was weak. Accelerator knew how heartless he could be. He killed more than 10,000 clones. And come to think of it, there had always been one face that urge him to move on. Her. Even if he killed her. So why did it take him that long to realize how wrong he was? Why couldn't he be a hero like that idiot? If he can't be a villain

-then what can he be?

"…a protector," he whispered in the wind.

On second thought he might as well buy the entire coffee in the store. He wasn't feeling up to chatting anyway.

Misaka had gone to every slot machine with Gekota merchandise. That afternoon while she couldn't kick down the vending machine because of Kuroko this kid passed by her. Her eyes spotted the green and white Gekota anklet.

"Ojou-sama! Where! Where did you get that!?"

The five year old politely told her that she got it from a slot machine near a train station in District 17. The Railgun thanked her and quickly boarded a bus to bliss. Her avid collector had instinct kicked in. When she found the said slot machine and emptied it with no Gekoto, Misaka was on the hunt.

She even used her PDA for all possible gachapon machine locations within District 17. Currently, she had destroyed three. Misaka was running out of options (and hope) of finding one.

"…Gekota."

About a minute later Accelerator was about to go into the sliding doors when he caught a familiar figure. Misaka was on the concrete with a mad look in her eyes and a basket of egg capsules beside her.

"What the-"

He thought it was a clone at first and just ignore it but quickly realized that she wasn't. She suddenly turned her head to him. Her hand extended a two thousand yen bill.

"Change. Get me some change."

Accelerator didn't know what to do and just obeyed upon receiving the cash. The albino shivered. When he came back (forgetting his coffee) he handed her the bucket of coins. Like lightning she started winding the knob. He stared at her. Definitely not a clone.

Damn, not even one greeting, he thought. Thinking that he too better get what he came for, Accelerator went inside. He took his time in the shelves but found her in the exact same spot moping. Accelerator was rather amused and watched her from afar. The slot machine was nearly out when at last she had gotten what she wanted. Misaka smiled then raised it up at the light to see. It was woven in green and white band with a small frog pendant.

"I can actually wear this…" her eyes sparkled.

When Accelerator had drank his fill and dumped it on the floor* he sighed. While distracted by the object he snatched it from her. Misaka was dumbfounded.

"Hey give that back you bastard!"

He smiled and held it up high so she couldn't reach it. She started crackling with electricity and somewhere in the outskirts of the city a few wind turbines were rotating the other way around. Accelerator smirked. Before she could do a roundhouse kick he knelt down and put it on her right ankle. Misaka felt his finger brush lightly on her skin.

"You…"

Her anger quickly subsided.

"You have weird tastes, Ms. Frog."

Then it returned. Misaka blushed and tried to zap him. He deflected it since it was obviously meant to be.

"Gekota is not a frog! He's much more special than you!" she yelled.

Accelerator raised his eyebrow questioningly.

"Huh? Well whatever. But what are you gonna do with that?"

She saw the pile of egg capsules. Misaka reprimanded herself for wasting yet again her instincts.

"Don't tell me you went on a rampage without realizing?"

The ginger haired girl decided not to answer. People kept judging her taste. Not to mention staring. But it surprised her when he offered to help her get rid of it. They went to a park. Accelerator didn't know why but he wanted to. He carried some but due to his crutch they were a bit slow.

"So you like those stuff…"

Misaka had been in her own thoughts coming up with this guy's intentions. Nothing was certain. It was really unexpected. So she was quiet and would like if he doesn't bring it up. And once he did she couldn't help feeling conscious.

"What if I do huh!?" she snapped and electricity sparked above her head.

Then he chuckled. Chuckled? It was weird hearing him so calm and now chuckling? What world is this? Misaka thought there was a disturbance in the cosmos or something.

"Did you hit you head? Hard?" it was more out of worry.

"You're being defensive, Ms. Frog."

"Don't call me that, Pervert-kun!"

Then a bunch of kids who saw them made gurgling sounds.

"Yuck! Onee-san has a boyfriend!" a boy said.

Misaka dropped the plastic and chased the boy around the park and caught him. she pinched his cheeks.

"Hey I know you!" Accelerator said.

"Huh?"

Both Misaka and the kid look at him.

"Yeah, you're the punk who bumped into me this morning and made me spill my coffee over my shirt!"

The kid seeing his face trembled.

"I…I'm sorry. I didn't mean to my…my abi-"

The ginger haired girl stared at him and realized she knew the kid, from not so long ago. Then it hit her. It was the same kid with the undeveloped electromaster ability*.

"Its fine, apology accepted." the albino cut him off and sat on the bench and put the basket down. A little girl with black hair and asked what asked what those are for.

"Take them."

He thought about Last Order and wondered if she would like one. Worst would tell him it's stupid though. While the little ones gathered to see the anklets Misaka approached with a serious look on her face.

"You scared the kid. He said he's experiencing electromagnetism at the time."

Accelerator looked at the kid who was nervous all over. He beckoned him.

"Aren't you listening? I said apology accepted."

"Really scary Onii-san?" the kid asked.

The albino nodded and tentatively ruffled his brown hair. He smiled a small smile which Misaka saw.

"Hey Onii-san, why are you all white?" a pigtailed kid asked.

"Because I'm scary."

In truth he wanted to leave already. No good memories come to him when seeing children running around, breathless, smiling, laughing and playing together. The Railgun asked him to play with them. He refused flatly.

"Are you fucking blind? I have a crutch."

"Well did you ever stop eating?" she asked with her hands on her hips.

"What's that got to-"

But she dragged him along whether he liked it or not. They spent a few hours running around and making sandcastles. While Misaka was hanging upside down by her legs on the jungle-gym Accelerator was having difficulties entertaining the kids. Somehow he wished he was a child like them too, a normal one Level 0.

"Hey, scary Onii-san, let's play hide-and-seek?"

"Its broad daylight." he pointed out.

"So?"

And so he was It. Misaka was still unused this Accelerator but she was glad he wasn't doing anything to harm the kids. Besides, he was patient and doing his best. Maybe he has changed.

Accelerator counted from one to ten. When he turned around they were giggling behind him as he was tagged.

"Why you little brats!"

He tried to catch them but they spread out. This isn't so bad, he thought. When it was time for the kids to go the two Level 5 esper made sure they took a bus. All of them have two to three anklets each.

"Thanks Onee-san! Scary Onii-san!" they shouted and waved goodbye.

The albino averted his gaze when the bus vanished from their sight. As he gazed at the orange sky he wished Last Order could be like them. Free. Accelerator had a hazy look in his eyes. He won't admit it but he actually had fun.

"You know you should bring them too." Misaka said suddenly.

AN: Gwah! You just can't rush it! A tsundere is fun to write but when there's two -oh shit!

1. Don't litter minna-san! (although there are cleaning robots in Academy City),

2. Its Nao, the kid in Toaru no kagaku Railgun S episode 4.

-midnightgamin