Lizzie was holding a yokai while being chased by Bountyhunters disguised as humans.

Lizzie: leave us alone!

She was eventually cornered the Yokai used its teleportation powers to teleport them both somewhere else

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Lizzie and the yokai appeared in a construction site.

Lizzie: thanks little guy.

The yokai jumped out of her arms to look around and suddenly The turtles and April landed in front of him

Raph: Aww! Hey little guy!

All: haha!

Raph: what? Pets love me

They all noticed Lizzie standing there and also noticed she wasn't a human. Leo blushed when he saw her

Mikey: whoa a mutant cat!

Lizzie: sorry what's a mutant?

Donnie: you don't know what a mutant is?

Leo: Isn't that what you are?

Lizzie: no. I'm a yokai. So is that little guy.

She pointed at the small Yokai and it jumped In Aprils arms

April: Aww! Your so adorable!

Mikey: it looks so weird. Does it have a name?

Leo: more importantly do you have a name?

Lizzie: I'm Elizabeth. But my mom calls me Lizzie and no I didn't have a chance to name him yet

Leo: well Lizzie it's a pleasure to meet you. I'm Leonardo but you can call me Leo.

They all hear voices from behind them and turn around to see the bountyhunters from earlier.

Raph: humans! Quick-

Lizzie: they're not humans! They're yokai disguised as humans!

Mikey: that's possible?

bounty Hunter: give me the creature and the girl. How you say pretty please. Or I'll destroy you

Raph: you think you're going to step to our new friends? Rookie mistake

bounty Hunter: you don't intimidate me

Leo: don't worry Lizzie I'll protect you

Lizzie: I don't need protection. I was only running because I don't a weapon to fight with.

Raph: well you better be intimidated because we're like nothing you've ever seen!

The bounty Hunters transformed into powerful Yokai

Leo: so... are you guys from New Jersey?

Lizzie laughed a little bit

Mikey: really Leo?

Leo: what I can't make a joke about the craziest thing ever that's how I cope! And Lizzie laughed at my joke!

The turtles took out there weapons

Raph: whatever this is our chance to finally use our weapons! Weapons ahoy!

Donnie: We agreed to reserve ahoy for ship based adventurous. I got this!

He activated a rocket at the end of his staff but it got out of control so the yokai teleported to the bo staff grabbed it i'm teleported to Donnie giving it to him

Donnie: oh hey it teleports which is- oh my gosh it teleports! Did you know about this Lizzie?!

Lizzie: yes but I forgot to mention it because we're in the middle of a fight!

Donnie: fair enough!

Donnie was hit with a mystic blast and hit a prick wall.

April: Donnie!

Donnie: pro tip... that was incredibly painful

The rest of the turtles were beaten pretty easily and the bounty Hunter captured the yokai and grabbed Lizzie.

Lizzie: a little help here!

The Bountyhunters created a portal to the hidden city and went in but April jumped into it as well

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Lizzie and the yokai were taken to baron draxum lab and put in cages. There was another human there for some reason. Then baron draxum walked in the lab

Draxum: so you thought you escape Elizabeth?

Lizzie: yeah! And once my mom realizes I'm missing you'll be put in jail for kidnapping and illegal experiments!

Draxum: the yokai will thank me for what I'm about to accomplish

Draxum Beauty to the human and he was turned into a mutant fish. The human ran away

Lizzie: thats just wrong.

Draxum: I'll deal with you next

Lizzie pretended not to be scared but was scared. Then the turtles and April showed up. But Raph kept forgetting to add all the evil things draxum was doing so Leo kept reminding him

April: lets do this! April O'Neil!!

She jumped in the fight and started fighting draxums minions. Draxum attacked the turtles with a giant robot and Leo cut its foot off and ran towards Lizzie's cage

Leo: you ok Liz?

Lizzie: I was kidnapped but yes. Thanks Leo.

Leo got her out of the cage and gave her a mystic scythe

Leo: I thought you could use your own weapon

Lizzie: Thanks Leo.

Lizzie joined the fight and was a pretty good fighter and took down the robot with the turtles

Draxum: accidentally impressive with a little bit of training you could be as formidable as I hoped

Lizzie: we're not you minions!

Leo: and since your surrendering-

Draxum: baron draxum dose not surrender

Leo: when he gets here we'll deal with him

Lizzie: Leo that's draxum

Leo: oh! He was talking in the third person

Raph: only Raph can use the third person! Alright guys time to put our training to good use!

Leo: what training you guys have been training?

Lizzie: am I the only one with training?

Everyone attacked draxum at once but he was to strong.

Mikey attack draxum with his new whip but it hold on fire and started moving on its own and dragged mikey wherever it went destroying the lab in the process. Mikey landed right next to his brothers

Raph: whoa mikey how did you do that?!

Mikey: I don't know! I was just swinging my weapon and-

It started moving on its own and dragged mikey wherever it went again

Raph: let me try! Magic weapon Magic weapon Magic weapon!

Raphs tonfas glowed red but he was suddenly launched against the wall.

Lizzie: my turn!

She swung her scythe a few times but was electrocuted by it

Leo: that was pretty shocking if you ask me

Lizzie: haha! But seriously I have to learn how to use this first

Leo: I can't wait to find out what mine does!

Leo attacked draxum but a portal opens above him and below him making him fall through an infinite Loop

Leo: get me off this ride!

Donnie: that's why I like fighting the old fashioned way with a futuristic tech Bo staff!

Lizzie: while I like to fight with mystic weapons. By the way I'm keeping this scythe!

Draxum attacked Donnie and Lizzie with vines but Lizzie cut them into a million pieces while Donnie's tech Bo staff became a Join fist and it hit Draxum right in the face.

Lizzie: nice one Donnie!

Donnie: thank you. It's just like I planned it

Mikey: look out!

Donnie was hit with Mikey's weapon

Draxum: You fight like untrained buffoons but with training you could become warriors!

Lizzie: I would fight you then fight with you! See the difference?

Draxum ties everyone up in vines

Lizzie: oh this is so gross!

April: how are we going to save the dog thingy now?

Donnie: Donnies on it!

He used his goggles to scan the lab but saw it was about to explode

Draxum: why are you all trying to stop my plans? We are all in this together!

Donnie: I don't know if this is part of your plan but the lab is about to explode!

Everyone started freaking out and draxums was crushed by a giant rock.

Lizzie: HA!

The small yokais cage was destroyed teleported to the turtles april and Lizzie then teleported them all out of the lab just in time. Mikey used a mystic key to get back to New York

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Everyone landed back in the construction site but Mikey broke they key they used to get to the hidden city

Lizzie: we're all alive! Yes!

April stood up and had the yokai in her arms

April: You okay boy or girl? You sure were good through all that mayhem. Hey Mayhem! That's a cute name

Raph: We just defeated a villain! We're heroes! We deserve a name like... Mad Dogs!

Lizzie: you do know I'm a cat right?

Leo: yeah don't you think something like Mutant Ninja Turtle Teens or Something? We'll keep brainstorming

Suddenly a bunch of mutant bug fly all over New York

Donnie: That can't be good

Leo: we should go people's blinds are starting to open.

Lizzie: I'm going to head home to.

She used a key to open another portal to the hidden city. It was similar to the one Mikey had

Donnie: wait you could've done that the whole time?!

Lizzie: like I said before we were in the middle of a fight

Leo: let me I mean us walk you home! We won't let draxum kidnap you again

Lizzie: that's ok he was crushed by a giant rock. Oh wait I almost forgot!

She took out a pen and paper from her pocket wrote down her number and gave it to Leo.

Lizzie: maybe you could call me sometime.

Leo: y-yeah sure!

Raph: sorry to interrupt but the sun is coming up! We can't be seen!

Leo: right sorry!

The turtles left and Lizzie went back to the hidden city

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Lizzie walked inside her house and her mom mediately hugged her

Alexa: where have you been?! You said you were only going out for a little bit!

Lizzie: I'm sorry mom. It's a long story but can I tell you tomorrow? I'm really tried

Alexa: alright but you have to tell me every detail

Lizzie: I will.

Lizzie went to her room and went to bed

The end