Yet another miserable day in the Bakugou household. Last time, Katsuki and Tsuyu took a test at home due to their circumstances. That's to say, Katsuki is annoyed too because he lost to Tsuyu at chess. Contrary to his unfittingly high intelligence, he forgets such small matters easily but his hatred for Tsuyu is nonetheless growing.

"Master, Master." Tsuyu beckoned. Her current actions, completely contrary to his previous uncaring behavior, was noticeably suspicious.

Katsuki, doing sit-ups on the living room, thought such. So he halt his current actions and stare at her weirdly. "What's with you being weird all of a sudden?"

"Master, this is something major." She continued to beckon him. "Please halt your training as to listen to this one."

He furrowed his eyebrows. She's being too suspicious! What is she planning now?

Regardless, he stopped training and walked close to her. "What's on the menu? A fried 'ride to the police station'? Or a 'guiltless public shaming' ramen? Oh, maybe a 'fucking my life everyday' softdrink! There's even the 'first day of the job, I angered my damn Master intentionally due to him being an asshole' curry! Which one is it?"

"None of those, Master. But I'm sure you'll feel pleasant after hearing what I'm going to say."

"Ever since you came here, there's nothing good came out of your mouth! You're basically a walking insult machine!"

Ignoring his words, Tsuyu continued with her speech. "There's a mountain climbing event at-"

"Great! What are you fucking waiting for, let's go! Those mountains aren't gonna climb by theirselves! Pack your shit!" With his gym bag, he quickly disappeared and leaving dust.

Tsuyu stared at the door. With her left hand on her face, she sighed, "He doesn't even know the location."

[Mountain Range]

"So what if I don't know the location!?" He yelled while appearing red in frustration and embarassment. "We still came early, right!?"

Tsuyu, still in her maid uniform, stares at Katsuki in pity. "Master, you've been searching for the event for two hours. Even though the mountain climbling event is only a few kilometers behind your house. How did you not even see that?"

The further rubbing salt on the wound embarassed him even further. "Shut up! It was behind our house! Of course I wouldn't be able to see that!"

Tsuyu stares at him with even more pity. "Master, just accept the reality."

"I'll throw you to a volcano if I want to!"

Surrounding participants looks at the two arguing characters.

"What the hell? Why is there a maid over there?"

"Maybe they're doing a cosplay?"

"It's probably that guy's preferences. But why is he unabashedly showing it off at us? Must be a pervert!"

"Let's just leave them alone, they're too weird!"

Katsuki, with his sensitive hearing, got frustrated by their needless comments. He stomped the ground and points at Tsuyu. "Why are you still in the maid uniform!?"

"Master, the contract specifically says I need to be your personal relaxation pet! That includes the uniform!" She takes out the dreaded contract yet again.

Relaxation pet!? Do you see your own self!? You're a torture device, not a pet!

Surprisingly, he didn't voice that out and instead refutes about the contract. "Can't you make an exception!?"

She only repeated the same thing. "The contra-"

"Okay, let's clear things up here." He rubs his temple. "You, are my maid. Is that correct?"

"Correct."

"And a maid, according to dictionaries, is undoubtedly a synonym of a female servant."

"Right."

"A servant, according to politics, is closely related to slaves. [1]"

"Master, it's n-"

"A slave, according to mangas, are people who unconditionally follows their owner."

"I-"

"And so, by unanimous vote and under the logisticness of living and dying." He points at Tsuyu. "You, a maid, a female servant or slave, has to follow every command I order."

"Master, I have every right to refute all your incorrect statements but..." Tsuyu looks at the scenery behind Katsuki's back. "The event over there is about to start, Master..."

Tsuyu pointed at the mountain where everyone else is already starting to climb the mountain.

"Wai- really- Shit!" Katsuki got confused for a moment but quickly ran to the mountain to start climbling. "Fuck, wait for me you assholes!"

And so, Katsuki climbed the mountain, with his bare hands... without any safety rope.

"Master, that's dangerous." Tsuyu leisurely warned. She was thinking that even if he were to fall, she wouldn't be at fault. She suddenly realizes something. "Ah wait, you didn't even wear a climbing gea-"

With a loud thud, people gathered around the source and saw a body. Though injured, still living.

Tsuyu slowly walks to Katsuki and stare at him.

"Don't worry, Master." Tsuyu tardily tooks out her phone. "I'm going to call an ambulance..."

"Ugh, you sack of shit...!" Katsuki cursed at her for the last time before fainting.

[Hospital]

"Well, the good news is, you're injury is not that bad." A doctor reassured at the Katsuki on a bed.

"And the bad news?"

"Uh that..." The doctor scratches the back of his head. "We'll, good luck!"

"Hey wait! What's the bad news damn it! Come back here!"

After the doctor left, that certain single entity that Katsuki fears/hates the most, came in.

"I think we both know what's the bad news, Master..."

"Hah!" Katsuki laughed in derision. "That's not all! I can even feel it in my goddamn nerves!"

"That's good news then." Tsuyu stares at an X-ray of Katsuki's brain. "At least your nerves still works just fine. Any worse than your current state will result in you being a cripple your whole life."

"It's that bad!?" He tried to move but his whole body ached and so rested back to the bed. "You can't be serious."

"You're lucky enough you didn't have a skull fracture. Luckily, it only jerked your brain due to your fall. You have surprisingly iron-hard skull and durable brain."

"I don't accept flattery from an annoying bitch like you!"

"I am honored to be complimented."

"That's not it though!"

"I also feel grateful that my Master is such a nice person."

"That's not it though!"

"Let's be honest here, Master." Tsuyu sats down on a chair near Katsuki's bed. "All those unfortunate occurences are due to your arrogance and ignorance."

"That flattery is completely and utterly unnecessary!" He rebuked. "You should be way more worried, you know? Your 'whatever it is' reward that you'll receive entirely depends on my whole wellbeing!"

"That may be true," Tsuyu coincided. "But according to t-"

Katsuki annoyingly imitates her repetitive responses. "According to the blah blah blah!"

"Contract! Yes! How could I forget!? Contracts should not be forgotten after all!" He slaps his face due to the irony.

"Still," Afterwards, he glares at Tsuyu. "There should be a balance here! If you're gay[2], I, the client, should also be allowed to be gay! Don't you know that at least more than fifty percent of the people in the world are gay!? Look at Deku, he's gay all the time! That round face along with that nerd is also awfully gay!"

"Master, your wording might induce a lot of misunderstandings."

"Like I care about that crap!" He flares up and calms down a second later. "So anyways, can't you at least turn down your... what's it called? Effective Aggravation? Yeah, that's right. I'm weak against aggravation. Something like fire-type Heromons are weak against water-type Heromons!"

"So what was aggravation-type Heromons weak against?"

"Obviously the amicable-type ones! Like Deku!"

"And what type are you?"

"I'm the explosive-type!"

"So are they strong against amicable-type?"

"Yes!" He agreed then contemplates for a moment. "No, maybe not. But seriously, the topic diverged by a mile!"

"Yeah, we ahould stop."

"And the bill is approximately a hundred thousand yen." Tsuyu concluded and gave him the receipt.

"So expensive!"

"Oh, there's also an additional bill for the injuries. That hundred thousand was just for the Brain X-ray." She pointed at something in the receipt. "For the injuries, about sixty thousand."

"Fuck!" He crumpled the paper in anger. "We should've just used that old hag's Quirk to recover my injuries."

"You ungrateful kid."

A karate chop hit Katsuki hard in the head and he held it in the process. The source of the attack is from Recovery Girl, the one Katsuki insulted.

"I'm the one who helped you recover. Kids these days don't know how to respect their elders."

"But why is it paid!?" He refuted while still holdong his head.

"My free healing service is only around the vicinity of the school and it's corresponding accidents. Anything else than that is paid. I have a life to live too!"

"Fine, I'll pay it!" He reluctantly compromised. To him, old generation heroes are too powerful, even if it's a healing hero. "Can I go now?"

"Well, you've been sleeping for three days, I think you had recovered more than enough." Recovery Girl walks out of the room but stopped midway and looks at Tsuyu. "By the way, how is his anger management program going?"

"Not satisfactory." Tsuyu answered in disappointment. "All the methods I've been enacting have been proven ineffective due to our incompatible tandem. I suggest for a replacement to continue the job."

"What?!" Katsuki jolted up in denial. "She didn't eve-"

But Recovery Girl intervened his refutation. She shook her head. "Is that so? That's too bad. Looks like this is going to continue for a few more weeks."

"Can I have the right to discontinue this hellish program?" He complained.

"Do you want to be a hero?" Recovery Girl asks back.

"Yes!"

"Do you think you have all the confidence to become the greatest hero?"

"Of course!"

She then looks at Tsuyu. "You should also make sure his superiority complex perish into absolute nothing. I don't care if you break the law of conservation of mass. Just make sure it's gone for good."

"What superiority complex!?" He interject in anger.

"I obey." She bowed in respect as Recovery Girl disappear on their sight.

Tsuyu then stared at Katsuki before talking. "Looks like the difficulty of my mission increased by six stacks of frogs. And it used to be three stacks of frogs too. Now it's nine."

"The difficulty increased by threefold!? What the hell!?"

[Katsuki household]

"Uhuh, everything seems to be pretty much back to normal." Tsuyu stated while serving Katsuki on the couch.

"You sound disappointed. You're a pure sadist, aren't you?"

"How did you know?" Tsuyu replied without much care.

Katsuki glared at her in reponse. "More importantly, I didn't even get to participate in the mountain climbing event. Fuck, that was yearly too!"

"That's just normal, isn't it? In general, I didn't even need to do much to cause Master total misery. Even the Mother Nature despises you."

"Please just give me your resignation letter already. My life is at stake here!"

"This is surprising. The one who begs for the resignation letter of the employee is the employer himself. I'm already feeling disconcerted by this."

Katsuki unwillingly bows down. "I. AM. FUCKING. SORRY!"

"Now, what should I do?" Tsuyu contemplates like how someone thinks of a punishment for a sinful kid.

And so the roles of Katsuki and Tsuyu swapped for a while.

[1] Katsuki mistook the meaning between civil servant and servant here.

[2] Gay - can also mean happy, lively, excited or cheerful.

Someone make me unbored!