It all began one day, when four adults were driving down a lone highway in Kalos.
These four were the Elite Four of the region: Wikstrom, Malva, Drasna, and Siebold.
They had just gotten out of a party at a mansion belonging to famous entertainer Monsieur Pierre, and were driving home.
Siebold: So does anyone find it odd how there were so many random people in that building?
Malva: Yeah, I guess he has so many fans, he wanted them all to come too.
Drasna: That must explain all the strangers I ran into.
Wikstrom: Yes indeed… (he's the one driving, and he looked back at them, preventing him from seeing a shadow in front of the car, which plows into the shadow) What was that?
Drasna: (gets out of the car, and looks back at the road) Oh Arceus, you guys have got to see this!
Siebold: What is it? (sees the remains of six Pokéballs, and seven dead bodies: a woman, a Hawlucha, a Tyrantrum, an Aurorus, a Gourgeist, a Goodra, and a Gardevoir)
Wikstrom: Goodness me! We've unwittingly slain a woman and six Pokémon!
Malva: That's not all… look who the woman is! (turns the woman's corpse around, showing her face) It's Diantha!
Drasna: Oh Arceus! Are you three hearing this?! The Champion of the Kalos League, and her Pokémon, are all dead! And we killed them!
Wikstrom: This is truly atrocious… we must inform the local authorities at once!
Siebold: Oh no, we are not doing that! If we tell the police that we ran over and killed the Kalos League Champion, and all of her Pokémon, we'll all get arrested!
Malva: Well what else are we supposed to do?!
Drasna: (sees a nearby cave) Well just have to hide the bodies. (drags Diantha's body towards the cave)
The others: (follow behind with the Pokémon bodies)
Wikstrom: Okay, the bodies have been stashed away, not a single soul shall be able to locate them now..
Siebold: Okay, now I suggest we pretend that none of this happened, and never tell anyone. If anyone finds out what happened to Diantha, you know what's gonna happen to us.
Everyone: (drives off, leaving the bodies in the cave)
1 Year Later…
During the year, the Elite Four slowly started to forget all about what happened last summer, and they made sure their Pokémon never found out either.
Unfortunately, the past was about to capture them.
Wikstrom: (walking back to his house) Ah, what a long, exhausting afternoon, hopefully my Pokémon have been doing exceptionally well while I was away. (opens the door, steps into the house… and falls through weakened floorboards onto a scalding hot sheet of metal in the basement)
(A tapestry with the words 'I KNOW WHAT YOU DID LAST SUMMER' is seen above his head, and his Klefka, Probopass, Scizor, and Aegislash are all in the basement as corpses, having been shot in the eyes)
Wikstrom: (sees a masked figure dressed like Zorro show up and close the front door through the hole in the floor, and feels the burning in his armor, making him scream in agony) AAAAAAAAAAAAAAAHHHHHHHHHHHHHHHH! I'M IN SEVERE AGONY ALL OVER MY BODY!
Masked Figure: (cackles evilly)
Wikstrom: (tries to climb back on his feet while in burning agony, only to trip, and fall face first onto a steel pipe, impaling him through the eye, and killing him)
Masked Figure: (turns to the reader, and speaks in an electronic voice) Looks like I turned up the heat on this guy! (hears noises outside) Oh boy, maybe I should've gone with something quieter.
Malva: (heads outside, and sees what looks like a huge pond near her house) What's that? (walks over to it, and sees the masked figure standing near it, holding a sign that says 'I KNOW WHAT YOU DID LAST SUMMER')
Masked Figure: (electronic voice) Hello there! (points to four bobbing things in the water)
Malva: Wait, what are those- (sees it's her Pyroar, Torkoal, Chandelure, and Talonflame) Oh Arceus!
Masked Figure: (throws a rock at her foot, pushes her into the water, and shoots it with a taser)
Malva: (is electrocuted to death)
Masked Figure: (looks to the reader) Sure, I could've simply drowned her like I did her Pokémon, but where's the fun in that?
Drasna: (sees a letter reading 'I KNOW WHAT YOU DID LAST SUMMER' slipped underneath the door) What on earth is this? Dragalge, can you go see who's out there?
Dragalge: (opens the door… and is shot dead by the masked killer)
Masked Figure: (shoots her Druddigon, Altaria, and Noivern with a shotgun)
Drasna: (tackles the killer to the ground, and aims the gun at her)
Masked Figure: (pulls out a handgun, and shoots her in the head, killing her, then turns to the reader) What? I ran out of creative ideas!
Siebold: (driving down the highway where he and the others ran over Diantha, following a map labeled with the words 'I KNOW WHAT YOU DID LAST SUMMER', which brings him to the cave) What the… this is the same spot where he hid the bodies!
His Pokémon: (get out of the car with flashlights, illuminating the cave, which is now empty)
Siebold: Oh my goodness, that's where we hid the bodies! Diantha's still alive, and she's taking her revenge! (the car's headlights turn on, signaling that the killer is inside)
Masked Figure: I got you now!
Siebold: Oh man! Everyone, swim away! I'll meet back up with you! (his Clawitzer, Gyarados, and Starmie jump into the nearby ocean and try to swim away, only to get blown up by a mine left in the water)
Masked Figure: I had a feeling you'd do that! (drives at Siebold and his Barbaracle)
Barbaracle: (jumps onto the car, and tries to break the windshield)
Masked Figure: (jumps out of the car, which plows into a fleeing Siebold, then hits a tree, throwing Barbaracle off the car, and into a tree branch, impaling him through the chest)
Siebold: (collapses on the ground, bleeding internally)
Masked Figure: (gets out of the car, and walks towards him) Well, it seems like karma has finally caught up to you.
Siebold: Diantha… I'm so sorry… we didn't know you were still alive…
Masked Figure: Diantha? Are you losing your mind? How could a dead person be responsible for all of this? (removes the mask, revealing… a different face than Diantha's!)
Siebold: What the… Calem?
Calem: That's right, I was the killer.
Siebold: I don't understand, I thought it was Diantha…
Calem: Oh no, she's dead alright, I found the bodies in that cave and gave them a proper burial. Look, the graves are right over there. (points to seven graves nearby)
Siebold: Oh… but… why..?
Calem: Why what?
Siebold: Why have you been doing this?
Calem: Well, I've been wanting to be an actor for quite some time, and Diantha said she could help me get a good role in an upcoming movie, but that never happened because you killed her!
Siebold: I didn't know… please… I'll do anything to make it up to you, just let me live!
Calem: Sorry pal, but you're one wrong I've just gotta right. (stomps his head in) Welp, I guess that's it. (hears police sirens in the distance) Uh oh…
