Spoilers from included and/or represented works abound. Please read this fiction carefully.
The Shadow Kingdom and co. had a royal dinner with the Sinners. After that, Emil Sinclair then left the castle, and traced the road used to arrive to the Dusty Depot which landed on the village Angelique is from. The rest of the Sinners followed as well, and Princess Charlotte finally has the first idea to travel to other worlds.
Akuyaku Reijou missed her world. So Charlotte and Angelique went to the empowered DeLorean.
"Let's go back to the original world for my soul's sake." Charlotte enters the DeLorean.
"What was it like?" Angelique entered.
"The girl was an otaku. Her mother's favorite genre was otome, and so was the girl's." Charlotte replied. "To be honest, she was quite interesting as a girl. However..."
-*flashback of her family's deaths*
"I want to uncover what's up with reality itself." The princess pedalled to 88mph, leading to the vehicle disappearing on ride.
Back in real world...
Akuyaku Reijou (悪役令嬢)
Status: Deceased
-*chuckles* "That damned potential reincarnator has been exterminated." A henchman from the Beach is satisfied. "And now, I'm going to take all her friends, and show them the risk of reincarnation-"
"Shut up! She didn't do anything wrong!" Reijou's friends objected.
"Too bad, she could've been a reincarnator! That's why the Mobius killed her family!" The henchman enraged. "That's what you gets for supporting a potential villainess who can put realities in ruins!"
The friends are tied, on full display in the streets, and the henchman just didn't care about what the street people think.
"Mobius, let's go-" Then the henchman got crashed by DeLorean Alpha5.
The henchman falls down, barely any worse for wear thanks to his regenerative abilities. Charlotte leaves the vehicle, much to the bystanders' shock.
"What!? Who are you!?" The henchman noticed.
Charlotte attacks with sorcery, injuring the henchman. She then choked him.
"Welcome. I am Princess Charlotte, but the name was Akuyaku Reijou. I came from the world of a game I was obsessed with in my previous life." Princess Charlotte declared to the real world. "I and Angelique the heroine has come to this real world to start uncovering the sinister secrets behind the murder of Reijou and her family. Sincerely, from Shadow Kingdom to here, by the villainess herself."
"You... you used to be dignified..." The henchman acted.
"Insolent! You dare to disrespect 'Akuyaku Reijou' herself? I brought the doom flag which would normally prevent the Princess herself!" Charlotte defied. "That doom flag is made by the heroine herself, Angelique! And I'm reincarnated into her dark, royalty twin sister!"
The bystanders are all shocked, while the friends are ridiculed to say the least. "Akuyaku... Reijou?"
"Remember when the Consul N and M killed the original girl's parents and left her for dead?" Princess Charlotte questioned. "And then, there's alternate reality itself invading the game, and now there's a henchman who supports the murderers? I want to uncover the secrets, and I order you to assist us!"
"What the fuck... you're actually-" Then the henchman is thrown away.
"Angelique, free the friends of this real world." Charlotte whispered to Angelique.
"Who are you!? Who are you!?" Some bystanders get angry.
"Ridiculous! Is this how you treat your guests!? By dehumanizing them on the spot!?" Charlotte objected. "You obey and follow the command, or fuck you!"
"I am Princess Charlotte of the shade." Charlotte shrugs it off. "I have all right to unravel the secret behind my past life's murder. Hmph!"
"You... how could you... reincarnate... They should've killed you on the spot like your previous parents!" The henchman have had it. "Off with my fox mask!"
Cue the henchman ripping his fox mask out, revealing his face to be the scarred version of Drift of Fox Clan.
"Drift!?" Some bystanders noticed. "That Fortnite?"
-*evil chuckles* "I am Mad Drift, the Realitiers from the forces of Fox Clan." The henchman revealed himself. "I'm the link between the Fox Clan... and the Beach."
"You must be a variant of that man." Angelique actually knew, because she searched for it before. "Charlotte, take him down while I save the friends of old your!"
He took out a blade made of Kinetic Ore. Dubbed Kinetic Blade, it allows the wielder to move great distances quickly and strike down foes with precise strikes.
"Katana time." Mad Drift engaged.
The henchman begins by Knockback Slash, which consists of two quick slashes, the second of which knocks opponent back a flying distance. Instead of attempting to dodge the thing, the princess magic shielded instead, which results in the protection breaks down after a few hits as to avoid knockback.
"This is cheating!" The henchman complained, and keep Knockback Slash. Charlotte fires a blast from her hand and dodged, but the henchman sliced it off.
Angelique untied the friends, and had them enter the DeLorean. The Mad Drift finally noticed the heroine.
"Oh little villainess, is that the heroine you used to despise?" He spotted the heroine.
"Hide!" Charlotte has Angelique into hiding.
"Less holding back, more blood feast!" Mad Drift kills a few nearby bystanders with Knockback Slash. "Kinetic Art: The Dash Attack!"
Cue the Dash Attack, the Mad Drift charges forward to a powerful slash, pinpointed toward the princess. She casted a mighty burst of dark magic, but that is easily sliced by the bloodthirsty henchman.
"Aaah! Argh...!" A wounded Charlotte falls down.
"Die, villainess!" Mad Drift do a single set of Knockback Slash, knocking the princess back up to the air.
"No!!!" Angelique get shocked.
"Now I'm just gonna kill you, little heroine, and I'm gonna break it all up. This world is screwed." Mad Drift searching for Angelique. "Where are you, little sweet heroine..."
From a cup discernible distance, princess Charlotte is floating directly above the streets, something only the bad endings had, which involved her getting to unleash her power and all potential, originally at the cost of her sanity.
"That's the fallen princess for you!" Charlotte blasts Mad Drift while he is unaware.
Mad Drift is bruised off from the blast, and is crippled in front of Angelique.
"Urgh...!" Mad Drift drops the Kinetic Blade. Cue the cheering from the surviving bystanders, and especially Reijou's friends.
"Reijou? I mean, that man is about to begone!" The friends cheered.
"No... No... I can still... fight..." Mad Drift barely got up, his hands now broken and dripping blood.
Charlotte floats down and walk to the spot, only for Mad Drift to charge towards her. She simply push him back and snatch the Kinetic Blade.
"For your utter disrespect toward Lady Angelique and my past life friends, and your remote allegiance with those murderers..." Charlotte declared Mad Drift's execution. "The reincarnated shall slice you down. For you..."
"No! Please, no! No! NOOOOO!!!" Mad Drift breaks down.
"...have violated this poor soul for conspiracy!" Charlotte do Knockback Slash upwards, whacking the Mad Drift up in the air. "Fuck you!"
Cue the darkness-infused Dash Attack, directing the boosted darkness up precisely to Mad Drift. Charlotte cut the bloodthirsty henchman in half with his own katana, thus the blood splatters and the bystanders rejoiced.
"Yay! We did it!" Angelique cheered.
"Akuyaku Reijou? Reijou, you saved us!" The friends left the DeLorean and hugged Charlotte.
"Thank you, guys," Charlotte/Reijou hugged back. "I missed you."
Reunited with her past life friends, Charlotte briefly roleplayed as the character she's now is, and introduced Angelique to the friends. Then, the magic twins explained what happened after Reijou was reincarnated. The police also arrived, initially in total disbelief until shown the bystanders' footages of the whole incident thus far.
"I have to find out what's with the murderers and their agenda." Charlotte confessed. "And I just so happened to catch some anomalies in my game world."
Charlotte explained about what appeared in the game that isn't meant to be in that game: Dusty Depot, the DeLorean, the Chrome ball, the Mephistopheles, the Sinners from Limbus, the Juggernaut she's forced to kill, and... the disappearance of the king himself.
"The King of the Shadow Kingdom? You mean the current ruler, and the father of the villainess!?" The friends are surprised.
"Oh wait, he's reportedly caught by the police, being considered an a-" A friend actually knew.
"He's in jail!?" Charlotte is shocked.
"Apparently, he was rather ill at the time he was found, so he's currently being nurses to health."-"The reason why he's arrested is because he's considered insane, but couldn't be accepted in a mental hospital."
Charlotte, Angelique and the friends quickly entered DeLorean, and ride to a nearby prison, where the king is currently in.
"Look! We now have a viral video about some incident involving someone like a relative of the king. You need to check it!" One of the inmates interacted with the ill King who's in jail for complicated reasons. "And mister, you too watch this."
The king is shown the footage of Charlotte stopping Mad Drift to save the friends of Akuyaku Reijou. The footage also featured Angelique.
"What...? My... princess?"
The footage ends with Charlotte hugging the human friends. The king is briefly left speechless.
"The character claims to be the child of the victims in the last week's murder, and actually said to begin uncovering the murderers." The inmate explained. "Furthermore, she even referred to a certain heroine her sister. You may not notice it, but I did."
"Her... My dear princess... brought this girl to..." The king can't believe it.
"The character even acted as if she's the last week's victims' daughter, and hugged the friends. Like, what the hell?" The inmate continued. "That sound like a story of schoolgirl reincarnated as a villainess being broken and thrown back into real world!"
"Wait..." The inmate then searchs the character on internet, and found out the otome game. "You're from the same world as theirs!?"
The other inmates in the cell heard it, and the inmates all panicked, much to the confusion of the king. All this was witnessed by a guard, who then reported the whole thing to the prison in particular, and the police in general. Then Charlotte and co. arrived.
"Looks like they're talking about your involvement." Angelique pointed it out.
"Give way to the princess!" Charlotte pushed everyone ahead out of the way. She and Angelique went right to the cell her father (the king) is situated in.
"Oh, the descendant of the Demon Lord-" The inmates is then greeted by the princess, who slashes the lock and enter the cell.
Charlotte hugged the king, emotive as reunion and in front of the shocked inmates.
"Please, she want to bring her father back home. She won't harm you." Angelique reassured the scared inmates.
"The heroine... She's... cute?" An inmate in front of the heroine.
"What did I just saw?" A guard is confused.
"Let's go home, Father..." Charlotte carried the king out of the prison.
The twins bring the king to the DeLorean, and drove away with the blade, the friends and most importantly, a gift from the original parents for the graduation that they weren't able to give before the murder.
The real world there began conspiracy theories around Akuyaku Reijou and the involvement of the game world and beyond, while the family and co. drives back to the game world.
"You know, gifting the original girl those electronics costed them nearly all the savings, which was a lot and proved they worked so hard." Charlotte talks about Reijou. "They even prepared a gift for her, but after the murder, the police kept the gift. When we're home, I'm gonna open it."
"The Kinetic Blade is a sword from another world, made to, uh... hack and slash reality itself." Angelique about the Kinetic Blade Charlotte took.
The DeLorean brings them back to the game world, and the family came back to what's currently commonly known as the Shadow Kingdom. The wound placed in the stomach, near the chest, the villainess got from Mad Drift, is literally leaking her own blood, and her dress is all but bloodstained on the side.
"You gotta heal me with light. I'll return the favor with darkness, before opening the gift."
Angelique heals Charlotte, while the latter takes time to order her maids and butlers to take care of the king. The princess ends up with an almost star-like scar, colored white after the holy light Angelique is used to cast.
The princess then punched the left eye of her supposed rival, and then restored it (through healing, of course), turning the eye black.
"Why do you make my eye dark, and yet-" Angelique is caught off guard by this treatment.
"You're a daughter of the king here, so you might as well be tagged with darkness the way you did me with light. Look." Charlotte used the Galaxy as selfie to show the treatment to both.
It's nighttime now. And it's time to open the graduation present. The twin descendants of the saint and the Demon Lord (as the game's lore put it) got exactly two plushies of their actual characters, and a note saying: "Congratulations on graduating, our beloved 'villainess'!"
"Thank you, the original mother and father who brought this little soul to the game!" Charlotte is touched.
"Yay, but..." Then Angelique noticed the backside. "What about the backside?"
Charlotte read the backside of the note:
"What have you become... How could you be able to... No, we made sure your family is killed... Damn it, we should have at least fucking disposed your body! We course you, Akuyaku Reijou. The Beach will be endangered if you continue to survive, even in-game. Just as we all feared, you're reincarnated into a villainess. You're a danger to not only the Beach, but the entire omniverse and across hypertime themselves. The Realitiers, especially us Mobius, will hunt you and your allies down. (We sabotaged the notes)" - N
"Oh no... They found out...!" Charlotte realized. "The murderers are out for my own existence!"
