A/N: Your Gunpla will be Gundam Astaroth Origin (my username and my most favorite gunpla irl xD). Gyanko will be using her R-Gyagya instead of the Gyancelot. Also, I'm really sorry for you Gyanko fans out there if she's a bit OOC, its been awhile since I've watched Build Fighters Try.

Now onto the story!

Kaoruko Sazaki, otherwise known as Gyanko. A student of the St. Odessa Girls School, and the leader of Team Song Dynasty Vase. A Gyan fanatic just like her big bro Susumu.

(Y/N) (L/N), a lone build fighter of Seiho Academy, known as (nickname). Not really famous, but feared by the people that knew him or had fought him in gunpla battles before.

Fate had worked its magic to make these two people meet in a practice match requested by Gyanko personally. She berates (Y/N), saying thank you for coming personally to face her team.

Gyanko: So you're the famous (nickname), huh.

(Y/N): Pleasure meeting you here, Gyanko. I hope this won't be a boring battle.

Gyanko: Oh trust me, it won't be boring.

(Y/N): Heh, this'll be interesting.

(Y/N) and Team Song Dynasty Vase then faced each other in the gunpla battle arena, setting their GP Bases and Gunplas. Gyanko had high confidence and hopes of defeating (Y/N) but its gonna change soon, not knowing what he can do.

Gyanko: Kaoruko Sazaki, R-Gyagya, launching!

(Y/N): (Y/N) (L/N), Gundam Astaroth Origin, launching!

All Gunplas launched into the battle arena which was outer space. Now with each other's machines trading glares through their Gunplas' eyes, (Y/N)'s Gundam took out its sledgehammer and charged towards the enemies.

The R-Gyagya quickly maneuvered to overwhelm the red Gundam, but that Gundam is quicker. With his wits (Y/N) maneuvered to Gyanko's flank, aiming to eliminate her teammates first.

Given that (Y/N) has been a build fighter for over 5 years now, Gyanko's wingmen were no match for his savage tactics of enemy mauling. Their Nobell Gundams were now just a bunch of scrap floating in space with heavy dents all over their armor.

Gyanko: No! My wingmen! What have you done?

(Y/N): Just letting them taste-test my sledgehammer that's all!

Both fighters' Gunplas then clashed once again, with Astaroth Origin's sledgehammer clashing against R-Gyagya's shield. However, with (Y/N)'s Mikazuki Augus-like wits he pried an opening without damaging the shield surface. Ripping the shield apart from its binders had infuriated Gyanko to some level.

She went serious and sent a barrage of cuts to (Y/N)'s gunpla, which he easily dodged. Reading her moves, he retaliated by slamming the sledgehammer to R-Gyagya's torso, sending it flying back a good meters away. It was nothing for Gyanko, of course. But the next thing happening is much to her surprise... she had been flying backwards along with the sledgehammer. She questioned (Y/N) if that was some sort of joke, but (Y/N) doesn't look like he's jesting around.

The sledgehammer is actually, merely a scabbard for the nanolaminate sword! Never in her life Gyanko was this surprised, nor seeing a weapon inside a weapon. (Y/N) just chuckled and charges once again. The R-Gyagya pushed the empty sledgehammer-scabbard away and reacted to the assault by maneuvering around to flank the Astaroth, and strike it down with the beam saber (or was it a rapier? I forgot) and bring victory. After succeeding in baffling (Y/N) she was about to deliver the final blow.

Gyanko: With this, you're finished!

*poof*

The beam just diffused on the armor of the Astaroth! Again Gyanko is fooled by looks.

(Y/N): Hey Gyanko... ever watched Iron-Blooded Orphans? Especially that episode where the mobile armor has awakened..

Gyanko: No... how can this be?! The beam just diffused upon contact with the armor!

Elsewhere... (for the lels)

Meijin Kawaguchi III: What kind of sorcery is that?! I must have it!!

Orga: Nanolaminated armors, son.

After a short clash Gyanko was ultimately defeated after (Y/N)'s Gundam sliced through her prized R-Gyagya with the nanolaminate sword, ripping it in half clean but still sparing the shields.

BATTLE ENDED
Winner: (Y/N) (L/N)-Gundam Astaroth Origin

Gyanko: That was... epic. And you're really considerate, too, sparing my shields although you've mauled the other suits.

(Y/N): Nah, it was nothing.

Gyanko: Anyway... *blushes* can I get your name? Your real name.

(Y/N): (Y/N). (Y/N) (L/N).

Gyanko: (Y/N)... what a nice name.

After the battle ended (Y/N) and Gyanko shaked hands as a sign of respect. In fact, they would then sometimes hang out to various places such as that place where the 1:1 Gundam stands stalwart. She had been developing feelings for (Y/N), and plans to propose to him next week.

The next week (Y/N) receives a letter from Gyanko, telling him to meet her at the park this evening. And so he waited until evening by customizing a gunpla he would later use in the future gunpla battles to come.

Evening arrives, and Gyanko is waiting patiently for her crush, soon to be beloved, at the park. And there goes (Y/N), with his hands stained by acrylic paints and airbrush stains.

Gyanko: My gosh (Y/N) what happened to your hands?

(Y/N): I've been through one hell of a painting job, that's all...

Gyanko: I see...

She was blushing at this point. Clearly she's stuttering to say something, but she's too embarassed. (Y/N) began to question her condition, only to be replied with a kiss. He was shocked at first, but then deepened the kiss and wrapped his arms around Gyanko's waist.

Due to the lack of O2, the kiss was broken. Gyanko stared deeply into the boy's (E/C) eyes, smiling.

Gyanko: Ever since that battle, I've fallen for you. But... I was too embarassed and afraid of rejection. Or maybe afraid if you're actually a dense guy.

(Y/N): I... I don't know what to say Gyanko.. but... I love you too.

-Fin

A/N: Yeah I know... the battle scenes are kinda rushed. Then again it's my first shot at writing a story that involves some guy piloting mechas.