The three days of Deku's house arrest are done, and he's back in class. He begins making a big deal of things, apologizing to everyone for falling behind and causing trouble.

Kaida ignores her classmates, only beginning to pay attention once Aizawa gets everyone to quickly shuffle into their seats.

"Morning. Now that Midoriya is back, we'll go into more detail about what the work study entails." Aizawa looks to the door. "Go ahead and come in." The door opens and in walks three very different looking people. "I'll have people who've experienced them first hand explain. Listen carefully as they point out how work studies differs from internships. These three are third years at UA. They rank at the top of our student body. You may know them as... the Big Three."

"What a cringey title," Kaida huffs, slumping her face onto her hand.

She briefly listens to their introductions, enough to determine that she finds them fucking weird... and annoying. Only did Kaida perk up when the big blond one shouts out for the whole class to fight him.

Everyone heads to the locker rooms to get changed into their gym uniforms before heading over to a vacant gym to battle. Everyone looks on at their senior in puzzlement at him stretching, trying to figure out if he's serious.

Kaida laughs, earning her classes attention. "This is going to be entertaining." She looks at everyone amused before moving off to the side.

Shoto leans on the wall beside her. "Not joining?"

"Not yet," she responds. "You?"

"I didn't get my provisional license, so I don't deserve to join."

"You not going to help us, Bakubabe?" Kirishima calls out.

"I'll join in once all of you are taken out." She smirks. "Can't wait to see you all fail."

And all fail they did. The blond beat the shit out of all of them in a few minutes. Kaida observes the short battle, taking in exactly how his quirk works. Blondie leaves his bottom open or else he would fall through the floor. She also liked the view. This blond senior is packing in more places than one.

Every one of her classmates is withering on the ground, clutching their stomachs as that's where they all were hit.

Kaida pushes herself off the wall with an amused smirk and sarcastically claps a few times. "That was very entertaining."

Blondie turns to her with a dashing smile. "You finally ready to join?"

"Yeah," Kaida responds, flexing her hands a few times. "One on one."

"Bakubabe, are you sure about this?" Mina calls out as everyone shuffles to the side out of the way.

"Yeah, he's too manly!" Kirishima grunts.

"Yeah, Aizawa sensei! You can't let her be alone!" Momo adds.

Aizawa shrugs.

"Hey, you're the one who won the sports festival, right? Didn't you have a twin? I don't see him," Mirio questions, looking around.

"He's under house arrest," Aizawa answers.

"Ah, well, I really wanted to battle against the two of you with your strong quirks, but you are the winner of the sports festival. I'll take what I can get," Mirio replies with a wide grin. "How about we get this started, huh?"

"Agreed." She doesn't waste any time and literally blasts forward, aiming her hand straight at his face. It goes through as she thought, and she quickly blasts herself up with her other hand to avoid his punch to her stomach.

He sinks into the ground to avoid her blasting him in the back.

"Whoa! Go Bakubabe!" Mina and Kirishima cheer.

Kaida lands on the ground, expecting for him to come up behind her. She sighs. "This is going to be difficult, but I have to time it just right to land a hit..."

He comes up from behind her, making her blast forward to avoid him again. He grins. "You're really good at maneuvering yourself to avoid my attacks!"

She whips around, seeing him still in place on the ground. She takes her chance, blasting forward and releasing an explosion in his face to blind his vision with the resulting smoke. Kaida slides along the ground underneath him, releasing a large blast to his feet and earning a pained shout from her senior. She smirks victoriously, moving herself out of the way as he sinks back into the ground.

The smoke continues to linger as she continues to release more explosions to create a large smokescreen.

"Man, I can't see anything that's going on now!" Kirishima complains.

"So much smoke!" Kaminari coughs.

"This is something that Kaichan can do that Kacchan can't," Deku says. "Considering that Kaichan is able to make bigger explosions, she's able to make a smokescreen. Kacchan can create smoke, but it usually disappears quickly right after his explosions are released."

Since Kaida created the smoke, it's as if she can feel what going on in it. She's able to tell where Mirio pops up before he disappears back under the ground. She's able to tell that he's limping, wincing with every step, which means she got his feet burned pretty good. If she thinks about it, he probably only had the very bottoms of his feet tangible. Thinking in that way, since the tops of his feet were intangible, the explosion may have scorched the inside of his feet. Which also means he can't walk on them too much from the pain.

She smirks. "Having trouble walking, senpai? Burning from the inside of your feet? Have blisters?"

"Whoa? Did she manage to get a hit on him?" Kaminari's eyes widen.

Kirishima smirks. "Attagirl! You go Bakubabe!'

"I wouldn't doubt it," Deku mumbles. "She's always been the strategist."

Kaida sighs to herself, thinking on how she's going to defeat him. "I won't be able to do that attack again. That was his only opening. He'll be able to block it. What the hell do I do now?"

He springs up behind her, making her blast him. He's completely enveloped by the explosion, but he phased through it, expecting it. She rolls out of the way as he returns underground. She pants a bit, clutching her arm as it starts a dull throb.

The smoke begins to clear as Kaida and Mirio continue to dodge each other.

"Seems like we're a bit at a stalemate, huh Kaichan?"

Her eye twitches before she sends a large blast at him. "Don't call me that, you naked weirdo!"

"That's a bit harsh, don't ya think?" he pouts his reply.

Kaida sighs, snarling her lip as she blasts him again. Last thing she can resort to, trying to get under his skin with her words. "So, your quirk let's you phase through things? Pretty lame if you ask me. Especially if it makes you lose your clothes. So fucking embarrassing."

He chuckles. "It was pretty embarrassing at first, but I don't mind it much anymore. It's a good distraction!" He spins around, sinking into the ground and coming up underneath her.

She moves a bit, adjusting herself just enough for him to land an attack to her stomach like he did with all her classmates. He takes the bait and swings his closed fist at her. She moves her left hand to her stomach while the other watches his other hand. She releases an explosion from her left hand only for his arm to go through her as the other comes in for a punch. She releases an explosion with her other hand at that one but that goes through her face.

Kaida does a backbend to avoid whatever attack he's planning, managing to avoid a headbutt. She kicks upwards, landing a kick in his face for a quick second before it goes through his head.

"Fuck!" she shouts annoyed, landing back on her feet as he disappears again. She pants, hands letting off small cackles at her sides.

He comes up from her left side, kicking towards her face where she brings up her hands to block. His foot phases straight through her arms and into her face. She's knocked to the ground.

She groans and spits out some blood, pushing herself back up.

Mirio grins at the sight. "Wow, I finally managed to land a hit on you! And you're getting back up! But I can't have that!" He shoves her side, pushing her back to the ground with his shoulder.

"Alright, enough," Aizawa calls out. "The two of you have been going for 20 minutes. Togata wins."

Mirio falls to the floor, breathing a bit heavily. His feet are too injured for him to remain standing. "Man, you really got me good with that first attack. Otherwise it wouldn't of taken so long for me to land that hit. You burned off a few layers of skin inside my foot! It really hurts! I seriously shouldn't've kicked you! That made the pain so much worse!"

It's silent as everyone takes in what happened.

Kirishima cuts off the silence with a loud cheer, followed by the rest of the class. They all rush up to Kaida with grins all over their faces.

"That was so intense! I was on the edge of my seat!" Kirishima exclaims.

"I can't believe you lasted for over 20 minutes when we only lasted a few seconds!" Ochaco shouts.

The two remaining seniors join next to Mirio, leaning down beside him to check on him.

Mirio begins to explain his quirk to the class. He mentions how his quirk isn't strong, he made it that way.

Aizawa sends the two to Recovery Girl, making Kirishima go with her as half her face is swollen from the kick. The other two seniors help basically carry Mirio there.

"I'm really impressed, Kaichan!" Mirio grins. "You're really smart to realize to aim for my feet! That is an area that I can't really phase at times if I want to stay on the ground. Next time, I'll definitely keep my whole foot instead of just the bottom of my foot. This pain is unbearable!"

Kaida gives him an annoyed and confused face. "You're a fucking freak."

Recovery Girl gets the two on their own beds once they arrive as she knew they were coming. She makes Kirishima get some ice for Kaida's face as she checks on Mirio's feet.

Kirishima smiles as he hands her the bag of ice that she immediately puts on her face to numb the pain.

"You alright?"

"I'm fine," she scoffs.

"Well, compared to how much damage our senpai took, I'd say you won the match," he tells her. "You may not have downed him completely, but I think you injured him more than he got you."

She glances at him, feeling and hearing her heartbeat in her ears. "Th-Thanks..."

He gives a big smile. "You're welcome! Ah! Your face is getting redder! Recovery Girl! The redness is spreading!"

〰️〰️〰️

The end of the day comes quickly and back to the dorms they go. It's the night before trash day, so Kaida manages to make class B give her their trash. Her brother's collecting trash tonight for his punishment, so everyone hoarded their trash especially for him and why exactly the reasoning Kaida took class B's trash. He obviously gets pissed off.

"You bastards! It's like you've been hoarding this for weeks!" he screams out. "Why the fuck do you have so much trash?!"

"I killed a bunch of people," Kaida replies. "Those are their remains... at least the remains I didn't need. I just needed organs."

"You better fucking be kidding!"

She gives him a sinister smile and shrugs. "Who knows? If you're going to investigate them though, I recommend doing it outside because the stench that'll come from those bags will be awful. I really would rather not have the smell trapped in here."

Everyone in the room looks at her a bit terrified as she walks back to her room.

"That's hot," Kaminari blurts out, making everyone look to him in disgust. "Ah! I meant the look on her face!"

"Sadist," Sero coughs.

"What?! No!"

"The fuck did you say about my sister?!"

"Oh, come on! She's hot! Everyone knows it! I'm not taking my comment back!"

"Get over here, so I can kill you!"

The two begin to run around the common room.

"Not to worry, everyone," Tokoyami speaks up, looking up from staring at the bags. "There aren't remains in the trash bags."

"How do you know that?!" Mina shouts, holding onto Tsu.

"I believe she's, as Kaida would say, 'just fucking with you,'" Shoto says.

"Todoroki!" Deku shouts in surprise.

Kirishima, Mina, and Sero all laugh. Katsuki manages to snag Kaminari.

"Dude, you've been hanging out with Bakubabe too much," Sero laughs.

"Did I not use it correctly?" Shoto asks.

"No, dude, spot on," Mina answers.