Yes, this is the first one, I've been thinking about this for a while, so hope you enjoy.

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Kerindia was at the Bey Park with Naoki, battling. "Stampead launch!" Kerindia yelled, using her move and bursting Naoki's bey. "Everytime you use that move, the strength increases by 20%, it's facinating." Naoki said, Kerindia smiles. "That's awesome, science becomes 100% more awesome everyday, hehe." Kerinida said, smiling cutely. "Heh, of course." Naoki said, they had one thing in common: science. Kerindia was like a female and cooler version of Naoki, as him and Wakiya would say. "Hey, wanna head to Wakiya's with me?" Kerindia asked, he nods. "That sounds fun, he may be annoyed, but I wouldn't mind tagging along." Naoki said, he was walking over to the other side to walk with her there, when Naoki trips onto her, their lips touching.

Kerindia had her eyes closed, everything around Naoki froze. He looked at Kerindia and something was builting up inside. It felt like she was the only thing in the world at the moment, that she made the world better, that she was the only thing important. He then snapped back to reality and got up.

"A-are you ok? That was so stupid of me to do that, I'm clumy, I-"

"It's alright, I understand." Kerindia smiles at him, sitting up. "Here, let me help you up." Naoki said, grabbing her hand, he blushed. [Her hand...it feels so smooth...] Naoki thought, Kerindia stood up, and shook his hand. "Thank you, I am forever in your debt." Kerindia said, giggling, Naoki was starsructed. Something was changing inside. "Alright, let's head to Wakiya;s." Kerindia said. "Wait!" Naoki yelled, grabbing her, she looks at him. "Hm?" Naoki blushed darkly. "U-uh...I have to go..." Naoki let her go and ran home, but when he got there...everything was empty, colorless, worthless, he sits down. 

"What happened..." Naoki asked himself, only able to think about Kerindia. "I need to see her..." He gets one of his flying bots out and on, having it go to Wakiya's place.

When it got there, Kerindia was knocking on the door, Naoki blushed, and everything had life again. "There she is...my little angel~" Naoki said softly, his eyes filled with lust and love, Wakiya opens the door and lets her in, the bot follows them inside. Wakiya and Kerindia battled. 

"You're holding your launcher crooked." Wakiya said, Kerindia smiles. "Heh, sorry." She moves her hands so they're not crooked, Naoki growls. "She was holding her launcher just fine...no, it was 100% perfect..." Naoki said.

After a while, Kerindia went home and Naoki kept having his bot follow her. "Oh Kerindia, you're so beautiful...so charming...so smart..." Naoki said, smiling, he then saw Kerindia talking to Shu. And then he kissed her. Naoki clenched his fist. "Unnacceptable...she's mine...my snepai~ I must stop him...then I'll have a 80% chance of her being mind...hehe...hahah..." Naoki laughs insanely.

That Night

Naoki left his house with a knife. Heading to Shu's place. Shu was cleaning up, he inivted Kerinida over for dinner and made a lot, so he had a lot of dishes. When he was done, he was heading to his room when...

ZAP!!

"Ah!" Shu fell to his knees, he was shocked. Naoki kicks him down. "Shu...you are not part of Kerindia and I's equation, so I'll take you out." Naoki said with a insanely grin, Shu's eyes widen. "What did you do to Kerindia?" Shu asked, turning to him. "Nothing, I would never hurt my sweet...sweet angel." Naoki then puts his foot on Shu's chest, and starts to slit his throat, and lets him choke on his blood for a bit, and finally, he cuts his head off. He gets off him, he then heard a knock at Shu's door. "Hm?" Naoki goes over to the door and looks threw the peaky hole. 

It was Kerindia.

Naoki's eyes widen. "What's she doing here? My calculationsshould've been correct, she should be home, safe, and asleep..." Naoki whispers, he quickly cleans up, putting the Spryzen's blader into the hall closet, mopping up the blood. He takes lab caot off and hid it, and cleans the knife. He inhales then goes and opens the door. "H-hello my ang- KERIDNIA! Hello Keirndia." Naoki said nervously. "Hey...is Shu here?" Keirndia asked, shen the saw red on his chest. "What's on your chest?" She asked, using her fingers to wipe it off, Naoki's eyes widen. [Oh no...] He thought. 

Kerindia smelled it. "This is blood...where's Shu?" She asked, her eyes light blue. "He's sleeping...heheh...forever..." Naoki said. "W-what do you mean?" Kerindia asked. He sighs then leads her to the closet, oppening it, and Shu's head fell up. 

Kerindia's eyes widen, and was about to run away until Naoki grabbed her. "Don't run angel...I did this so that there would be a 100% chance of us being together...but if you tell anyone, then I'll have to kill them..and keep you for my eyes only...and I know you don't want that, now do you?" Naoki asked, smiling crazily, Kerindia started to cry. "P-please don't hurt me, I won't say anything, I'll do anything." She begged, Naoki wipes her tears. "Don't cry my angel...I'll never hurt you, I promise, be mine and no one else has to die." He said softly, Kerindia thought.

"Alright...I'll be yours." She said, Naoki hugs her. They were always together, and if anyone, even Lui, tried to hurt or be mean to her, Naoki would take out a weapon from his pocket and threaten them. So he was like a body guard, but love sick. Kerindia learned to love him and they lived happily.

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I feel like I did a bad job on this...hope you enjoyed.