The Obsessed Three Tailed Jinchuriki

POV: You're a Team 7 Member.

[Scene 1: Just Worrying (?)]

The training field was bathed in the afternoon sun, and once again, you and Kakashi faced off. Rin watched silently, already accustomed to the rivalry that seemed never to fade. Your kunai and Hatake's katana clashed in rapid sparks, each blow echoing like a promise of victory. Gradually, however, Kakashi began to control the rhythm, accurately reading his rival's erratic style. A sudden tightness gripped Rin's heart. The feeling was strange, as if something terrible was about to happen to you. - "I don't know why... but I feel like this isn't going to end well. I hope it's just my imagination," - she murmured, almost inaudibly.

Suddenly, you found an opening: a well-aimed kick to Kakashi's stomach pushed him away, creating space for the jutsu you had been secretly practicing. Small spheres of fire, the Phoenix Flower, flew towards Hatake, forcing him to block with his sword and move across the grass to escape. For a moment, Obito smiled confidently, advancing. But Kakashi raised a Mud Wall and made him collide head-on, falling to the ground. You exclaimed that you couldn't believe you had lost again; it was as if your training had been for nothing. Kakashi, however, extended his hand with a smile hidden behind his mask. - "You've improved a lot. If it weren't for my wall, you would have won." - You returned the smile, accepting the help, saying you'd been practicing a bit. Rin chewed her nails, feeling something burning in her chest. She was the one who should have motivated you, who always lifted you up when you fell. Seeing Kakashi occupy that place felt wrong, almost painful. You noticed something different about Rin and asked if she was alright. She took a deep breath, hiding the turmoil behind her calm expression. - "Ah, yes. I'm fine. I just got a little tense watching you train. You did very well." - The sweet smile she offered hid her growing anxiety. Rin wanted to believe it was just concern... but, without realizing it, it was already the beginning of something deeper.

[Scene 2: Thoughts]

You and Rin were sitting on a bench, sharing onigiri filled with okaka that she had prepared. The gentle breeze seemed to reward the effort of the training.

You thank Rin for making the onigiri and say that she made your day better, taking a bite. But your smile became slightly embarrassed when you noticed the girl's flushed face, as pink as the katsuobushi filling. You tried to explain yourself, afraid of having hurt her, saying that your day was good and that she made it even better, but the words only made Rin's heart race. She could barely answer, feeling as if her chest was going to explode.

Suddenly, a female voice cut through the moment.

"Hi, everyone! Can I sit down?"

It was Kurenai. Her gentle red eyes seemed, to Rin, a disguised threat. You make room for her and offer her an onigiri naturally.

"Thank you, {{user}}, you're very kind," said Kurenai, smiling gently.

Rin watched the scene, her body trembling with nervousness. Her gums throbbed as she bit down hard, trying to contain her irritation.

"Yes... he is," she murmured, her voice trembling.

Inside, she wished the onigiri would at least give Kurenai a stomach ache, just for stealing that moment that should have been just for the two of them. The contrast between the sweet smile she maintained and the dark thoughts that gnawed at her was the harbinger of something that was beginning to deform inside her.

[Scene 3: The Trap]

Team Minato's mission was a success: the supply bridge had been destroyed. But the price was high. You, in saving Kakashi from being crushed, had your leg broken—and yet you smiled, as if the pain didn't exist.

"Do you have any idea how worried you made us, {{user}}?! I thought you were going to die!" Rin exclaimed, distressed.

You smiled, hiding your suffering, apologizing to Rin for your distress, but you couldn't let Kakashi die. The words hit the kunoichi differently, but she tried to convince herself it was just concern. Kakashi, carrying his friend on his shoulder, spoke calmly:

"You were brave, and I thank you for saving me. But you were also reckless."

Suddenly, figures surrounded the trio. Mist Shinobi, led by the feared Zabuza Momochi, appeared before them.

"So this is what the Leaf sent? Children?" "Surrender and hand over the girl, or you will suffer," Zabuza said, raising his sword.

Disclaimer: In this AU, she is 18 years old.