At an embarrassing day with Neji Hyuga that was kidnapped by the Spider Clan warlord named Genshin that took him into his village, he was really angry at him for taking him away from the leave village as he looks inside of the closet, only seeing nothing but a Japanese school girl outfit, blushing furiously about his new outfits.

Neji: *blushes* what is this!?

Genshin: your new outfit. I think it might be a good fit for a ninja like you.

Neji: I'm not wearing that! It'll look ridiculous on me!

Genshin: well you have no choice but to wear it. Wether you like it or not, you'll get used to it.

Neji: *thinking* why does this have to happen to me?

Genshin chuckles, crossing his arms while Neji was pouting about wearing the outfit, but he decided to go to the bathroom, changing out his primary outfit to his school girl uniform, blushing at the feeling of wearing a short skirt. He comes walking with him in the village, really embarrassed about people snickering behind his back, feeling humiliated by the warlord and his people treating him like a joke and he's the punchline. Genshin takes him to show him a helium tank in front of him, patting his back to get closer to it.

Genshin: there's a helium tank for you to try out, Neji.

Neji: hold on, why did you want me to test out the helium tank?

Genshin: it's a way for you to know "helium jutsu". It's going to be your ninja way to inhale all of it.

Neji: I really gotta inhale all of that? But I'm already a skilled Hyuga, I don't gotta do this.

Genshin: *chuckles* you're in the Spider Clan village now, so you gotta follow my rules. After all, you might get respect from others hear.

Neji gets more flustered, but sigh as he put the hose in his mouth, turning on the helium tank and hear it hissing loudly, filling his cheeks up along with his belly expanding. Genshin smirk, touching his ballooning belly and saw his butt and thighs expanding, showing his white panties and his bulge. He quickly ties a balloon string on Neji's wrist to prevent him from floating away, holding onto it tightly to see the young ninja float from the ground, becoming a lot more rounder and bigger, feeling his hands and feet sinking into his expanding body, spitting out the hose from his mouth, and realized that he's fully inflated like a balloon.

Neji: *muffled* this wasn't to help me learn a new jutsu. You just wanted me to be your balloon toy!
*Flaps his tiny hands*

Genshin: let's say it's more of you understanding your new purpose here in the Spider Clan village~.

Neji: *muffled* you're enjoying yourself by humiliating me are you?

Genshin: gotta admit, I am amused by you, Neji. You honestly look adorable like this~.

Neji feel him touching his Inflated body, groping him that would make him blush, but have to admit it does feel good due to the helium made him more sensitive. He giggles to being teased by the Spider Clan warlord until his laugh turns to soft moans to feel his grip on his large, inflated butt. Genshin smirk, looking at him with his one good eye, patting his butt and touching his bulge through his panties.

Neji: *muffled* oh, that feel amazing, Genshin. Keep groping my sensitive body~.

Genshin: good, seems like my little butterfly is enjoying being a big balloon~.

Neji: *muffled* yes, I honestly am. It really does feel good to be so big and floaty~.

Genshin: I knew you'll love it a lot. Now the people don't really see you as a joke anymore~.

He walks out of the building, holding the balloon string while Neji float and bob around the air, seeing the Spider Clan villagers are no longer laughing, but is amused by his inflated appearance. They were waving at them, and cheering on at them as both, Genshin and Neji smile at each other, and continue to walk their way through the village on their beautiful day.