((Note: She is here. Let's do this!))

No POV
Everyone is looking at a new person walking as they are talking about her. Chitoge then look at Raku, Shū & (Y/N), who is now better.

Chitoge: We're getting a transfer student today?

Shū: That's what I hear. This seems so sudden, though. Apparently, they were late letting in the students know. I hear this transfer student's a guy. And rumor has it that he's a real pretty boy! Talk about taking the wind out of my sails!

(Y/N): "You have no wind nor sails."

The teacher then open the door & entered.

Teacher: All right, I know this is sudden, but I've got a transfer student to introduce to you today. Come on in, Tsugumi.

Tsugumi: Okay.

Tsugumi then walked in. Tsugumi is a beautiful fair-skinned girl with chin-length navy-blue hair that has a big light blue-white bow on the left side with a few hair strands hanging over him face, radiant red eyes, a mole under her right eye and she is said to look very masculine. In fact, Tsugumi was mistaken to be a boy by many people when she first enrolled into high school due to him looks and him uniform. Despite this, her breast size is an E and they are actually still growing. She is usually seen wearing khaki pants and a white shirt with a red necktie that has two thin white chevrons that go up to him chest. She wears a blue blazer over it and wears brown shoes. Tsugumi also wears a blue-ribbon on him head that was given to him by Chitoge Kirisaki to make her look more feminine.

Seishirou: Hello, everyone. My name is Tsugumi Seishirou. Nice to meet you

The girls are screaming like fan girls.

Teacher: Take any empty seat.

Tsugumi: Okay.

Seishirou then walked toward an empty while looked at (Y/N) smirked.

(Y/N)(Mind): Yep... She has grown.

Chitoge then stand up in surprised.

Chitoge: Tsugumi?

Seishirou: Milady! It's been a long time, milady.

Seishirou then hugged Chitoge, shocking everyone.

Chitoge: H-H-Hey! You idiot! What do you think you're doing in front of everybody!

Seishirou: Oh, malady! How I've longed to see you!

After that crazy situation, Seishirou then bowed his head.

((Note: For the story, She will be a he until the reveal.))

Seishirou: Forgive me for showing up so abruptly. Under Mr. Claude's orders, I am to stay by your side & expand my knowledge base.

Chitoge: Well, that's fine, but... Why are you dressed like that?

Seishirou: Oh, actually... Try as I might, I couldn't find a uniform issued by this school, so I had no choice.

Shū: But seriously, I wonder why he's dressed like that?

Raku: He just said why. He couldn't get hold of one.

Shū: Oh, I don't mean that... Oh, right! So that's the story! Well, of course you had no choice! No choice at all!

Raku: What's your problem? That's really creepy!

Seishirou: By the way... I've heard that you've gotten yourself quite the gorgeous boyfriend recently?

Chitoge is shocked.

Seishirou: If you don't mind, would you introduce him to me?

Chitoge: Uh, sure.

Chitoge then looked at (Y/N) as she then notion him.

Chitoge: H-Hey!

(Y/N) then stand up & went to Chitoge & Seishirou.

Chitoge: Him! This is my boyfriend!

(Y/N) then bowed. Seishirou is happy.

Seishirou: I've heard so many rumors about you! But now that I'm seeing you in person, it's obvious that you're such a reliable-looking person. I can see the Bee Hive gang's security is in good hands!

Chitoge: Oh, thanks.

(Y/N)(Mind): This is... strange.

Seishirou: Excuse me. Let me introduce myself again. I'm Seishirou. As I happen to be close in age to milady, I was her frequent playmate, & we grew up together since we were both children. Lately, I haven't had many opportunities to see milady, & so she's constantly been on my mind.

Something did crossed (Y/N)'s mind. He then show a question.

(Y/N): "Did both of you play with a boy that is around the same age back then?"

Seishirou: Yeah, we did.

Chitoge: Darling, how did you know about that?

Painful memories of his past then show up in (Y/N)'s head as he then dropped his notepad from his hand, causing him to hold his head.

Chitoge: Darling!

(Y/N) is panting heavily at that. The bell then rang, signaling that it is lunch time. Raku & (Y/N) are started to eat their lunch as Seishirou is trying to feed Chitoge.

Seishirou: Okay, open wide & say "Ah!"

Chitoge: Geez! I told you, I can feed myself!

Seishirou: Oh, where's the harm, milady? Back in the day, we often ate our meals just like this.

Chitoge: That was back when we were kids!

Raku(Mind): What am I watching?

Chitoge: You can't keep acting like this, Tsugumi! How long are you going to keep it up?!

Tsugumi: Here! It's your favorite, Assam tea!

Chitoge: Huh? Oh, thank you.

Chitoge is enjoying her tea. She then threw the cup, causing Tsugumi to dodge.

Chitoge: Hey, enough already!

Tsugumi: Mistress, you're grown up to be more magnificent than ever before.

Raku(Mind): What's with this guy?

Shū: Oh hey, doing all right there, (L/N)-kun? That's a nice-looking rival you've got over there.

Chitoge: Ugh, you need to cut it out! Stop being so clingy!

Chitoge & Seishirou went to the boys.

Seishirou: What? Don't you think that's a bit harsh, Mistress? And to think there was a time when we would even bathe together!

Raku then spit take at that fact.

Chitoge: Okay, that's it! I'm going to the bathroom for a minute! Don't you dare follow me!

Chitoge then left to the bathroom.

Seishirou: Take your time. (L/N)-kun. Would you mind if we spoke in private for a moment?

(Y/N) then nodded. Seishirou then takes him to the roof.

Seishirou: Well, there is one thing that I would like you to clear up for me. It concerns our Mistress. Do you truly love her with all your heart?

(Y/N) then nodded.

Seishirou: Is that so? How much do you love her?

(Y/N) then show Seishirou his sketchbook. He then flip the page where Chitoge is on a date.

Seishirou: Would you go so far as to give your life for my Mistress?

(Y/N) then nodded.

Seishirou: Ah, I see. That puts my mind at ease. In that case, would you die for her right now?

(Y/N) took the pistol, unlocked & unloaded the slots from the bullets, locked it back, then handed it to Seishirou. She is surprised.

(Y/N): "You knew I don't have any relationship with Chitoge. But I knew you were never a boy."

Seishirou: But... How?

(Y/N): "You never bathe with Claude."

Seishirou: Why would Mistress fall for someone like you?

(Y/N): "Do you want the truth?"

Seishirou: Seriously, there's no way you could ever love her more than I do!

Seishirou then calm down & decided to leave. (Y/N) then look at the bullets.

(Y/N)(Mind): Claude couldn't trust me.

(Y/N) dropped the bullets. Seishirou then looked back at (Y/N).

Seishirou: You think you're the one she belongs with, do you?

Chitoge barge in.

Chitoge: Hey! Would the two of you stop this nonsense! Come on guys, what kind of silliness is this? Tsugumi! Darling! You two have to get along, okay?

Seishirou: Mistress, please stay out of our way. With all due respect, Mistress, I cannot...accept that this man is your partner! Mistress, do you remember? The promise we made ten years ago? After that day, I decided to become stronger in order to be able to protect you with my own hands. All these years, I've been subjecting myself to a rigorous training regimen, honing my skills to become more powerful for your sake! I pushed myself until I shed blood! But all for what?! Why is the man who is meant to be protecting you such a spineless, flimsy, pathetic weakling? I cannot allow this! My Mistress is the hairless to the magnificent Bee Hive organization! If you think that you have what it takes to protect her, you'll need to prove it before I'll acknowledge you! (L/N)(Y/N)! We'll battle for Mistress! I challenge you to duel! When you prove you have what it takes to defeat me, then I will acknowledge you as worthy of her. However, if it is I who defeats you, I will show you horrors worse that hell, & then... I'll kill you!

Chitoge: Tsugumi. You need to chill out a bit.

Tsugumi: After school, on the schoolyard. Be there, or I'll come kill you.

Chitoge: Oh, for Pete's sake! I was hoping things wouldn't turn out like this!

(Y/N): It was obvious. Claude's involvement.

Chitoge: You knew?

(Y/N): Yeah.

Chitoge: You know, a few years ago some Thugs tried to hit on me, & Tsugumi tore them & their whole organization to shreds! That's how talented this kid is! Singlehandedly, of course. Once Tsugumi gets going, it's too late.

(Y/N) then walked to the door.

Chitoge: You'd better not lose.

(Y/N) then stop.

Chitoge: I-It's not like I care about what happens to you or anything, though. But it'll probably be a disaster for everyone if this doesn't work out. There's a lot at stake here, so I won't forgive you if you mess this up.

(Y/N)(Mind): Too cute. She's care for my safety.

It was after school as (Y/N) & Seishirou entered in front of the building. Both Raku, who was informed the situation, & Chitoge are looking.

Seishirou: I commend you for actually showing your face.

The girls cheering for Seishirou.

Raku: Where'd this crowd come from?

Seishirou: I had nothing to do with this.

Shū: All right everybody, place your bets! One meal ticket per wager! We're running out of time!

Seishirou hold a coin.

Seishirou: Our duel begins the moment this coin hits the ground. Prepare yourself.

Seishirou then flip the coin in the air. The coin hut the floor as Seishirou then pull out loads of firearms & aim her pistol, but was disarmed by (Y/N). He then grabbed the pistol as & tried to shoot, but both of them are countering each other. Seishirou then push him back with her leg & bring out a semi-auto. She starts firing, but then dodges the shots with acrobatic jumps. The third one was a backflip as his blazer was shot. He then went to hide behind it, causing Seishirou to grab his blazer, but he vanished. Seishirou is looking, only for (Y/N) to put her in a sleeper hold, but she jump & flip out of it. The fight continued, then Seishirou then notice that all of her weapons are gone. (Y/N) then decided to face her with his fist. Seishirou then charge & both of them countering using CQC. Seishirou then got a clean hit across his face. Seishirou smirked, but then wide eyed when he felt his glare.

Seishirou(Mind): What is this feeling? The only stare I have ever felt & fear is...

(Y/N) then uppercut Seishirou as it did send him in the air spinning. She then fell to the ground. Everyone, especially the girls, is shocked to see that their prince has been knocked out. (Y/N) then looked at the board with Shū, who has all the lunch meal tickets due to them betting on Seishirou. He then looked at Seishirou. He then went to her, pick her up, & bring her into the infirmary. (Y/N) then left a box of pocky & headed out.

(Y/N) POV
I then leave the school with a couple of scratches & a swollen hand from the punch. I then made home as I see my mom & dad preparing dinner.

(D/N): Hey, son. We're making Cacio e Pepe. Whoa, your hand looks swollen. What happened?

I then used my other hand & wrote down what has happened. (M/N) then looked unimpressed, but felt very angry.

(M/N): I think I should-

There was a knock on the door. (M/N) then went to it. She then open to find Chitoge & Seishirou. Seishirou looked like she has seen her idol.

(M/N): Can I help you two ladies?

Chitoge: Oh, my friend has something to say to (Y/N).

(M/N) then let them in as Seishirou then went to me.

Seishirou: Understand this, (L/N) (Y/N)! I haven't lost to you just yet, you got that? You still haven't proved that you have what it takes to protect my Mistress, & that was the whole point of the duel!

(M/N): He knocked you out with one, which begs the question. Why were you at that school?

Seishirou: Claude send me there to investigate the boy.

(M/N) glares angrily as an Apex Predator.

(D/N): Dear. Let it go.

(M/N): ........yes.

Seishirou: I... I don't believe this. The Boss...

(D/N): It's okay. I already know. So, you two are leaving or staying for dinner.

Chitoge: Oh, we're leaving, Mr. (L/N).

(D/N): Here.

(D/N) gave a plate of Cacio e Pepe to Seishirou & Chitoge.

(D/N): A plate of Cacio e Pepe.

Seishirou: Wow.

(D/N): Now, you two should hurry on home. Your father might be worried.

Chitoge & Seishirou then thank my father. The new day, I was helping Raku with the notebooks. He then stop to see something. I then looked to see Seishirou wearing a girl uniform. I then moved past Raku as I started to feel a heartbeat.

Me(Mind): What was that?

((DONE! (Y/N) WON THE DUEL, BUT HIS OWN HEART SKIP A BEAT WHEN HE SAW SEISHIROU. IS THERE A REASON BEHIND IT? UNTIL THEN, STAY SHOCKING!!))