The Mentor of a Mary Sue: Kyra's Final Days
- J. Yahnke
- May 10, 2023
- 7 min read
Follow the disjointed exasperation of the number one hero, Kyra a.k.a. Zero, who's student Mary...is a Mary Sue. She's annoyed, wishes she retired earlier and determined to drink herself into the grave instead of dealing with the reality she's found herself in.
In a modern world with superpowers, Kyra, commonly addressed as Zero, should have been more surprised when someone pathetic and innocent looking came asking to be her student. Really, she should have realized right then and there what was happening. Taking on a student for their heart, perseverance and determination; but you know what they say. Hindsight is a bitch. She might be exaggerating, BUT! That does not stop the truth.
Her first, and only student, is an absolute Mary Sue.
Even her name is Mary! That pathetic shrimpy looking girl with untrained powers who was orphaned at a young age and constantly bullied growing up is now her student.
And Kyra can’t —in moral conscience— say she regrets it.
“Oh Mary~ You’re so strong!” cheered Kyra’s nephew and a hero in his own right, Nathaniel, known as StormCrusher.
Mary blushed, “Oh Nate… I’m still beginning my training, I have lots of experience to earn! But don’t worry, I’m sure I’ll reach the top one day!”
Kyra slammed her head against a nearby wall. Three days. The teen had been here for all of THREE days and already she had a harem of boys ready to follow her to the death. Including her own fucking nephew. There’s only been one assassination attempt on Kyra’s life! Why the hell is this happening to her!? What did she do in her past life to earn this fate!? Kyra really does not want to deal with this shit.
Kyra sighs. But she’s the number one hero! She has to set an example and choose a successor! You say that now but when society goes to shit because they rely on one pillar to hold them up you’ll regret it! Honestly, Kyra knows exactly what sort of horrible things lie in the underbelly of the underworld. There’s a reason she retired after a huge villain fight; retiring in glory, leaving a new generation to take over.
But nope. She now has to deal with a Mary Sue, something she thought only existed in poorly written self-insert fiction which she will forever deny reading as a teenager.
This girl was also really starting to tick her off.
***
“No Mary, you cannot go after Villain whats-his-name just because he’s an evil, pretentious, asshole.”
“But Zero, surely because he’s an evil, pretentious, meanie you’ll help me take him down!?” Mary protested, obviously not understanding that taking down a villain who’s also the head and owner of a giant corporation without a plan for after and how to replace the positive benefits was a poor idea. The amount of people who would end up unemployed would impact the city’s economy for at least a solid year if not longer.
Mary just continued to pout, tears pooling in her eyes as her harem tried to protest for her. This girl would be pathetic if Kyra didn’t know that her powers made her a powerhouse.
Kyra prayed to whatever deity was out there for aid, “Mary. This man is dangerous, powerful and a lot of people are going to be hurt in the crossfire. You’re rushing this. You need more patience.”
‘Please, please please give me time to figure out how to find employment for all of the hardworking employees who have no fucking clue that their boss is a villain. ’
Kyra punched a wall when she found Mary and her harem’s beds empty that night.
Groaning in annoyance, Kyra resigned herself to a lack of sleep and a shit ton of paperwork as she began preparations to deal with the aftermath. That and up the training of Mary, her nephew and the rest of Mary’s little gang of misfits. If they were going to be characters from a Shounen manga, she sure as hell was going to torture train the hell out of them to avoid getting any more grey hairs.
She was thirty-three for fucks sake! She should NOT have gray hairs! Especially not ones she can name the cause of!
She avoided stabbing the girl and destroying the wall next to her when Mary returned with half a dozen cracked ribs, her nephew beat up, her three friends in various states of injury and disarray, with two of the villain’s fucking henchmen giving Mary goo-goo eyes and looking a mix of extremely embarrassed and starstruck as they were meeting Zero, the retired but still badass number one hero, who also started off the whole hero thing.
Things only got worse from there. Regular fights, sneaking out, character arcs. The whole deal.
“MARY!! STOP TALKING TO HIM AND KICK HIS ASS!” Kyra shouted from her place in the stands. As her student wasn’t listening and continued to talk her opponent into submission Kyra allowed herself to flop back into her seat before chugging her water bottle which was NOT filled with water but instead vodka. It was the only way she could cope without murdering her student.
Once more, what did she do in her past life to invoke the Fates’ hatred? It was fine in fiction but she NEVER wanted to deal with the exceedingly long fighting tournament arc that made Kyra want to bash her head in. On top of a general lack of thought, strategy and plot development.
And then came the training camp arc. Yeah, Kyra could already tell where this was going. She did her best to protect Mary and her little gang of misfits earning a metallic spike through her stomach and leg.
Kyra glared at the villain who had one of Mary’s little misfits trapped.
“Oh how the mighty have fallen!” the villain grinned, gaining an unimpressed look from Kyra though the brat that was trapped was screaming and shouting his head off. By the Fates this kid swore more than she did! And she only swore so much because Mary was giving her constant gray hairs! And she was lamenting being the mentor to a Mary Sue. And her nephew is always drooling over the girl. And- really Kyra had far more reasons to swear her head off than this brat who should know by now that Mary was going to use plot armor and save the little shit.
She should curb his temper once they get out of this. Kid’s now getting his ass beaten due to his various insults. Kyra should probably push through like a hero and save him now…nah, the little shit could die.
“Zero! Are you and Brian alright?” Mary begged, as if pleading and praying would magically heal all of Kyra and the brat’s injuries.
Just like a true hero, Mary arrived just as Kyra had decided to stop giving a fuck and just let the little shit die while letting the villain win. Kyra wanted to strangle her. The brat looked like he wanted to make out with her as a thank you. Nothing hotter than a girl saving your stupid ass from villains.
The moment they returned to base Kyra headed straight for her room.

This way no one saw Kyra down a whole bottle of Vodka in the privacy of her room. Normally that much concentrated alcohol would kill a person, but Kyra was a fucking superhero who didn’t follow the laws of human nature. The hangover and headache from Mary and her crew the next day was not worth it.
Honestly, what Kyra really regrets the most is not realizing that was coming next. By the time she figured it out, she quickly got over it and accepted it. Denial wouldn’t prevent it and neither could Mary’s magical plot bullshit. Kyra was the mentor, her plot armor ended soon.
Mary obviously couldn’t accept that.
Her eyes were full of tears, “W-What do you mean you’re likely to die soon?!”
Kyra shot the girl an are-you-fucking-kidding-me look, “Listen, whether or not I die in the end doesn’t fucking matter. What matters is all the lessons, training and wisdom I actually taught you unlike most fictional mentors better stay in your head. Consider the consequences, don’t rush into anything and wearing your heart on your sleeve all the time makes it an easier target so pick and choose when you do that shit. Understood?”
Mary nodded but Kyra just wanted to drink another bottle of extremely alcoholic vodka, this bitch was a Mary Sue, she would ignore Kyra’s words in the end. Hopefully not. Because Kyra would like for her death to at least mean that a protagonist remembers their mentor’s advice for once during the grieving process and not towards the end when they’re about to die.
Yeah, Kyra needed that vodka A.S.A.P. And No. She wasn’t an alcoholic. She was the mentor to a Mary Sue who was extremely aware that her student was a fucking Mary Sue at the same fucking time. That alcohol was not worth the everything that came after but she damn well will enjoy it before her fucking death.
Kyra’s prediction came true when the big bad showed up. She died soon after.
Kyra starred in spiritual form at her own bloodied corpse. Mary was grieving, crying buckets of tears and holding onto it as if it would bring her back to life(Kyra wouldn’t put it past her to do that though she’d really rather not.)
“O-Oh Zero… I’ sorry I caused this-” By the Fates child, you didn’t pull the fucking trigger you stupid girl, Kyra growled, “-but I’ll fix this. I’ll avenge you, if it’s the last thing I do.”
And off Mary went. Pulling a magical power-up out of her ass as she was about to die and defeating the big bad in the name of her now deceased mentor.
“I hate my fucking life.”
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The End
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