Annie: Armin, I'm glad I could be a good person to you. You've won your bet. But....This is where my bet begins!

Y/N: ARMIN! DO IT NOW!

*BOOM*

As the steam and heat filled the air, you watched in front of you the Female Titan begin to form. 

Erwin memory: We have identified a person of interest who may be the Female Titan. Her name is....

Her transformation finally completed as you saw her enter the nape.

Y/N: Annie...

You made it deeper into the tunnels before the second explosion got you.

*BOOM*

Flashback, several days earlier, your POV

You, Levi, and Eren were in a dining room waiting for Erwin and the other's to show up.

Levi: They're late...Erwin and his men are keeping me waiting. The MP escorts will come here before they do. *takes sip of his drink* He's probably constipated and having a rough day.

Y/N Thoughts: Who the hell thinks that? 

Eren: Your talking a lot today, Captain. 

Levi: Don't be stupid. I always talk a lot. 

Y/N Thoughts: Especially when you get Petra's father's blessing to marry her, yeah. 

He tried to move, but winced from the pain he received from getting injured fighting against the Female.

Eren: I'm sorry. Back then, if I hadn't made the wrong choice...This would've never happened. 

Y/N: He already told you, No one ever knows how things will turn out. 

The door opened and walked in Erwin, followed by Petra, Gunther, Eld, Oluo, Sarah who was carrying little Sarah since she didn't wanna leave yet and was asleep, then followed Mikasa and Armin, Jean, and another Scout who was here to give a lay out of Stohess District. Sarah passed Sarah to you so she could rest on your shoulder. 

Little Sarah: *yawn*daddy?...*rubs her eye*

Y/N: Go back to sleep sweety, it's okay.

Little Sarah: Okay...*light snores* 

Erwin: Sorry to keep you waiting.

Eren: Not at all, sir. 

Eren noticed the rest of them behind the Commander.

Eren: You guys! U-Um...

Erwin: We have identified a person of interest who may be the Female Titan. This time, we won't let her escape. 

They all took a seat, Mikasa next to you, and she stroked Sarah's hair, earning a small smile on her face in her sleep. They laid out a map on the table to begin pointing out where the operaton would begin. 

Erwin: The operation will be in two days. It will take place in Stohess District, on our way to the capital. This is our first and last chance. Once we pass that point, Eren and Y/N will be remanded to the capital. Our pursuit of those who seek to destroy the walls will become fraught with difficulty. Ultimately, humanity stands to go extinct. We will still stake everything on this plan. 

You and Eren nod at what he just said. 

Erwin: Here it is. 

He pointed at a location on the map.

Erwin: When we pass through Stohess, Eren and Y/N will act as a decoy, and lead the target into this underground tunnel. If we can get her to the lowest level, given the tunnel's size and structural integrity, even if the target transforms, we can immobilize her. But if she transforms before then...Eren, Y/N, we'll need your help. 

Eren: Y-Yes, sir.

Y/N: On it. 

Eren: As for the target, are we sure she's in Stohess? 

Erwin: Yes, our targets is a member of the Military Police. 

Eren: The Military Police? 

Erwin: It was Armin who arrived at that conclusion. He believes the target also killed the two captured titans. She may be a former trainee from the 104th, the same as you. 

Y/N Thoughts: Don't be who I think it is....

Eren: W-Wait a second...the 104th? 

Erwin: The name of the girl we believe to be the person of interest is...

Present time

*BOOM*

Erwin memory: Annie Leonhart. 

You sat there seeing the blood and body parts of people scattered in front of you due to the explosion of her transformation. 

Armin: C-Crap...

She reached her hand inside and you all began to run before she could snatch you into her grasp. 

Armin: Damn it...that ring! She knew I was bluffing from the start. She knew we would ambush her. We must have had another way! 

Mikasa: Save it for later. What do we need to do right now? 

Y/N: Let's meet with squad 3, and try to get above ground. We'll go with plan B! We fight Annie....the Female Titan! Me and Eren transform and assist in her capture. Right Eren!?

Eren: Yeah! 

Scout: Hey!

You looked ahead and saw a Scout waving to you.

Armin: It's squad 3!

Scout 1: Did the first capture attempt fail!?  

Y/N: It did! Go plan-LOOK OUT!

You warned them too late as Annie crushed them with her foot, collapsing the ceiling above them. The dust forced you to cover your eyes, and when you opened them, you saw them under the rubble, squashed. 

Armin: She stomped through the ground!? 

Eren: We have to help them!

Y/N: No! Get back! 

You dragged him back from the hole she made.

Eren: Hey, Y/N! 

Mikasa: The Female Titan is willing to let you two die? 

Armin: She made a bet...

You all turned to Armin as he looked at the hole. 

Armin: When she created that hole,  she made a bet they wouldn't die. It's crazy, but it also means she'll be tough to beat!

He took off running as you followed. 

Armin: To take Eren and Y/N, Annie's willing to assume any risk! 

It's been a while since she stomped into the ground, and you were all sat in the tunnel devising a plan of escape. 

Armin: What should we do? Our exit is gone. Even if we use our 3D Maneuver Gear to make a quick exit, she'll be right there waiting for us. But if we...

She stomped the ground again. 

Armin: If we stay here, who knows when she'll crush us? 

Eren: I'll do something, like when Y/N blocked the cannon shell. Come this way!

You all gathered around Eren.

Armin: Wait. 

Eren: Lets go...Stay close! 

He bit down and you all waited for the strike to come down, but instead you heard his painful screams and him biting into his hand. You saw it wasn't working. 

Eren: Not again! No...

He bit down again, and dropped to his knees.

Eren: Now, of all times...IT HURTS! 

Y/N: Clear your head! You gotta have a specific goal! Picture it in your mind, clearly! 

Eren: I am! 

Y/N: TRY HARDER! 

Eren: But...

He bit down harder as the blood began flowing out of his wound. Still nothing. Mikasa knelt down to his face.

Mikasa: Don't tell me, you still have reservations about fighting Annie. 

Y/N: Eren? 

Y/N: After everything you've seen, you still think it's a mistake that Annie is the Female Titan!? 

Mikasa: What did you just see? She's the one who killed our fellow soldiers. How can you still think that? 

Eren: Shut up! I'm trying aren't I!?

He continued to bite down on his hand.

Y/N: That's not good enough. Get it through that thick skull of yours Eren, Annie is the Female Titan.

Y/N Thoughts: I fucked the Female Titan.....may the walls bless me...

Flashback 

Erwin: Annie Leonhart.

You spat up your drink and began to cough like crazy, waking up Sarah.

Little Sarah: Daddy? Are you okay?

Y/N: Yeah*coughs* I'm o-okay.

Y/N Thoughts: Holy shit....I fucked the Female Titan...

Eren: Annie's the Female Titan? Why? Why do you think that Armin? 

Armin: From the start, the Female Titan knew what you two looked like. And she reacted to your nickname, "suicidal bastard", which only the 104th trainees would know. And the biggest reason, is that I believe that Annie killed the test subjects, Sawney and Bean. 

Eren: How can you tell? 

Armin: Only someone very skilled could have done it. And they'd have to use their own Maneuver Gear, which they're accustomed to. 

Eren: Yeah, wasn't that why they inspected our Maneuver Gear? But they didn't find anything on Annie...

Y/N: She probably stole a set of gear. 

Armin: Annie brought Marco's gear to the inspection. That's why she managed to avoid getting caught. 

Eren: Huh? What are you talking about? What does Marco have to do with this? 

Armin: I don't know. 

Eren: Are you sure it was his?

Armin: Yes, I know what I-

Levi: Hey, kid. We get it. Do you have any other evidence? 

Armin: No, I don't. 

Mikasa: I think Annie's face resembles the Female Titan's. 

Y/N Thoughts: Of course you would say that.

Eren got out of his chair.

Eren: Huh!? What are you talking about!? That isn't evidence-

Levi: So, you have no proof, but you'll do it anyway. 

Eren: You have no proof? What? Then why do it? What if it isn't her? 

Mikasa: Then we'll know she's innocent. That's all. 

Armin: And I'll feel bad for Annie.

Y/N Thoughts: She'll rape me to get back at me for going along with this....oh lord...

Armin: However, if we don't do something, you and Y/N will end up being sacrificed the everyone in the capital! 

Eren: Your crazy to think Annie's a titan. 

Mikasa: Eren, now that you know we suspect her, isn't it ringing any bells? 

He looked like he just came to a realization.

Mikasa: You fought the Female Titan. Didn't anything remind you of Annie's distinctive combat style? You know, don't you? You know Annie is...

Present

Mikasa: The Female Titan? Then we should fight her shouldn't we? Or do you have certain feelings for her? Is that what's stopping you? 

Eren: Huh? 

You heard Armin draw a blade and turned to him.

Armin: I have a plan! Mikasa and I will exit at the same time, using the original exit, and that opening. Annie will attack one of us. Use that opportunity to get out from the other exit! Y/N, when she's distracted, transform from under here, and begin your assault.

Y/N: Roger. Mikasa, take my cloak.

You gave her the cloak and she blushed before regaining her composure.You all began to part ways, leaving Eren on his Knees.

Eren: Wait! Then one of you will die! 

Y/N: If we stay here, we all die, anyway! Mikasa, Armin, take your positions! 

Mikasa: Right, I'll take the front! 

You took your spots, and readied yourselves, while Eren was yelling. 

Erem: Mikasa! Armin! Y/N! How? How can you fight her!? HOW!?

You stopped and took position, then turned towards Eren. 

Y/N: We don't have a choice. The world is cruel. 

You all left, leaving Eren there. You heard a loud grumbling noise behind you.

Y/N: SHIT! EREN!

*CRASH*

You looked up through the hole and saw Mikasa and Armin make their way out. She went after Mikasa and you took this chance and took out your knife and cut your hand, and felt the surge of energy before turning into a titan, and erupted from the ground, giving her a hard upper cut.

Y/N Thoughts: I won't let you take him or me you bitch! And this is for having sex with me! even if it was good!

You roared and tackled her through a series of buildings, then put her to the ground. You began to struggle, and she was starting to grapple with you, trying to gain dominance. You broke free and she got up.

Y/N Thoughts: COME ON!

You roared as you both charged at each other.

Armin's POV

I went back to the tunnel to try and find Eren. 

Armin: Eren! I'll get you out!

I saw him under the rubble, and he wasn't conscious. I could hear the fighting going on between Y/N and Annie while trying to get Eren out of the rubble. Then I heard running and turned around to see Annie had knocked Y/N down and was making her way to us. Mikasa was right on her, and manged to distract her again, but she got knocked down by the debris Annie created from hitting the buildings. Before Annie could continue, Y/N tackled her again, sending them farther away, as the scouts began to chase them

Scout 1: Don't let the Female Titan escape! 

Scout 2: Don't let her get out! 

I continued to try and get Eren out.

Third Person POV

The escort of the scouts stopped, and was wondering what was going on.

Nile: What happened? Escort team, we don't need you here! Go see what's happening! 

Marlow: Roger! 

They left, leaving a few of the MP's and Scouts together. 

Nile: Something's off...that explosion I heard...

Erwin: Nile! Deploy all your troops. We should assume a titan has appeared. 

Nile: Wh-What?! This is Wall Sina...There's no way a titan could be here!

Jean came out of the wagon, being fed up with the disguise, as well as Moblit.

MP: Wait! Don't move Jaeger, L/N! 

Jean: I'm done with this disguise! Never call me that name again, moron! 

He pulled off the wig, making the MP jump back in surprise. They both ran to the commander while putting on their cloaks. 

Jean: Commander, I'm going, too.

Moblit: As am I. 

Erwin: Get your equipment from squad 4.

Both: Roger! 

Levi: It's good to see someone has the balls to go, but don't forget to do your damnedest to stay alive. 

Jean: Yes, sir. 

They both ran off,leaving a confused and angry Nile.

Nile: Erwin, what is this!? 

Scout: Commander, here! 

A scout pulled out a case and opened it to reveal Erwin's ODM gear. 

Erwin: Good work. 

He equipped it, and prepped himself for engagement. 

Nile: Hey, Erwin! 

Erwin: Anyone who can move, follow me! We'll rendezvous with the capture teams! 

He was walking, but Nile got in the way.

Nile: Erwin, wait! 

All of the MP's took aim at both Erwin and Levi. 

Nile: What your doing is clearly treason against the crown! 

Levi: Nile, I'm starting to wonder if your brains don't even live up to that sorry excuse of a beard. Seems to me you don't even have a clue to what's going on.  

Nile: Remove your equipment, Erwin! 

In the city

People were running for their lives, seeing two titans fighting and crushing small buildings. The MP's were on the roofs wondering what was going on.

MP 1: Hey, aren't those titans?

MP 2: Yeah...but how? 

Mina's thoughts: That's Y/N's titan...I gotta help him, I'll regroup with the Scouts!

She jumped away and headed towards the fight. She saw Jean running, and went down and ran with him.

Jean: Mina?! 

Mina: Hi ya horse face! Where's the rest of the scouts!

Jean: Shut up! And I'm heading over right now. Your part of the MP's?

Mina: Yeah, but I think I'll quit to help Y/N.

Jean: WHY DOES HE GET EVERY GIRL!? 

Mina: Because he's just that much of a man than anyone.~ 

The scouts were converging on the Female, while you were trying to lead it towards the trap they set up. 

Eld: Don't attempt to kill it! Just try and slow it down! 

You gave a upper cut as a scout flew by her face, and she reached trying to kill him, but another scout caught him and threw him into position. She tried to chop his cable, but you stopper her, and dropped her to the floor, but she countered by twisting your leg, making you go down as well. 

Mikasa: I'm not gonna make this easy on you!...AND THIS IS FOR SLEEPING WITH Y/N! 

She slashed her ankle twice, forcing her to the ground, as you pounced on her and began to attack again.

Back with Armin

He finished clearing some of the debris off of Eren. 

Armin: Eren! Eren, answer me! 

Jean and Mina landed and rushed to him.

Jean: Hey! What're you doing!? 

Armin: Jean! Mina! Eren's trapped! 

Jean: What!? The plan was for him and Y/N to become titans! 

Armin: He couldn't! I think the fact it's Annie is stopping him!

Mina: Annie's that Female Titan thing!? 

Jean: Annie? 

Armin: Anyway, we have to save him! Jean, help me! 

He got another piece of debris off of him. 

Jean: He couldn't transform? Eren, what the hell is wrong with you!? Didn't I once tell you I was counting on you!? We have to entrust the world, humanity, our lives to you! And this is how you repay us!? Marco...Marco....damn it! 

A boulder hit the building behind them as they heard you roar, continuing to fight Annie. The boulder ricocheted off the building and into the spot Eren was trapped in, making them all jump away. They saw him pinned, and a piece of wood going through his right side of the chest. 

Armin: Eren...

Jean: It's no use...we gotta do something about her first and help Y/N. 

Mina: I'm going! 

They both drew their blades and ran off towards the fight. Armin stayed to speak with Eren. 

Armin: Eren, I said this once to Jean, someone who can't sacrifice anything can never change anything...That to defeat the monsters, you have to be willing to throw aside your humanity! Annie and Y/N are certainly capable of doing that...althoughI don't know what her reasons are, but whoever can do it will win! 

He ran of to the fight, leaving Eren to think about what he just said.

Back in the fight

The Female Caught one of the scouts and smashed him into a building. It saw Armin.

Armin: Annie! If you can't kill me this time, you can't make the same bullshit excuse that your bet's beginning anymore! 

She turned with a shocked expression on her face, Mina and Jean tried to strike her nape, but she covered it with her hand and hardened her skin, making their blades break. 

Jean: Armin, this way! 

Armin: Roger!

They flew away as you charged and pushed Annie to the ground. She looked up at you and saw you were giving her the middle finger while smirking in your titan form. She began to chase, in a very pissed way.

Y/N Thoughts: OKAY, FLIPPING HER OFF! NOT A GOOD IDEA! AHHHHHHH!!!!!!

With the scouts 

Levi squad along with other scouts were set on top of a roof where you were leading Annie towards. Petra stared at Hanji who had a terrifying smile while holding the firing mechanism for one of the anchor launchers they used to capture her the first time. 

Hanji: hehehehe~~~it's coming~

Petra thoughts: scary....

Moblit: Squad leader...you have a crazy look in your eyes. 

They saw you run pass, then they saw Annie, and she noticed them as well. They fired the launchers and wrapped Annie in them, she tried moving, but fell instead. They threw anchor nets over her to nail her to the ground. You walked back over to see Annie immobilized. Hanji was twirling the igniting string in her hand.

Hanji: Okay! I thought there'd be no need for plan C, but nope...That's commander Erwin for you I guess. Good job Y/N!

You gave her a nod as Mina landed on your shoulder.

Mina: Hey Y/N, so I was thinking, after this is all over, wanna go for a drink?~

She leaned against your cheek with a seductive smile while inside your titan, your blushing like crazy.

Y/N Thoughts: Even when I'm fighting, she finds a way to seduce me?....Ehhh, why not?

Hanji:  Now then...

She jumped down, and landed in front of Annie's face, and drew her blade.

Hanji: Be a good girl. Stay put. 

She pointed the blade at her eye.

Hanji: Here, your too far in to get the titans to devour you like before. But don't worry...I'll be the one devouring you instead. I'll devour all the information we can dig out from you. 

Y/N Thoughts: Gosh, you really are weird and crazy.

Out of no where, Annie used her leg to sweep the wires and a few scouts, forcing them to jump away. She got back up and you put down Mina before being tackled by Annie. You resumed your fight.

Mikasa: She broke free!? 

Hanji: We needed more traps! Don't let her escape, follow her! 

All the scouts began to chase her as Annie was pushing you back, and you were struggling this time.

Y/N Thoughts: Damn it, she wasn't like this in training, was she going easy? 

Back with Eren

Armin memory: Someone who can't sacrifice anything can never change anything! 

Eren Thought's: I know that....that's why I failed. 

Fighting

You and Annie were trading blows, but she was getting the better of you, and you were beginning to get tired. She kicked your leg in, and made you fall into a building. She hardened her leg and kicked you face in, destroying it, and immobilizing you. She then left and walked off somewhere else.

Back with Eren, play,  (ignore the pictures of Levi squad being dead, they're alive!)

https://youtu.be/QadRDXBLAUY

Author's Note: Yes, I know it's shorter compared to the other chapters, but CLIFF HANGERS, YEAH!!! Anyways, I plan on throwing a bit of extra stuff in the next part, some interesting things are going to happen...very interesting~...thanks for reading, CYA!