Neji's mind groggily came around as he woke up from his sudden drug induced nap. Looking around he tried to see through the low light, his attempt to access his Byakugan informed him that his chakra system was completely screwed up from whatever drug it was.
After a few minutes he noticed a letter hanging in front of him. It took him another couple minutes to actually understand what the letter said, and when he did, a cold sweat broke out over his body.
"Dear Neji,
You have wronged me deeply, but I will not activate your seal. Instead, you will be punished in another way. And remember, I LOVE YOU!
HH"
Neji began struggling to free himself from the ropes and wires binding him into place. He had to get out before it appeared. It was horrible, it was vile, it was the purest form of evil ever conceived.
That's when he heard it. The soft whumpfs of its footfalls, and he began to cry. It was too late, he was doomed, because it was here.
It stood a good six feet tall, and the purple and green colors of its body belied its true insidious nature. The creature smiled widely at the poor trapped prodigy, and then opened its mouth. "I love you... you love me... we're a happy family..."
As Barney continued singing its mind destroying song, Neji let out a scream of pure terror, which no one heard from so deep under the Hyuuga main family house.
The poor tormented shinobi would be found seven days later after missing his bout in the Chuunin finals. His opponent Naruto would be the most concerned over the disturbing mental state of Neji. He was found in his room, rocking and mumbling out some random song no one could make out. Whenever anyone tried to press on finding out what was wrong, he'd simply break down in screams and tears.
No one wanted to know what this 'Barney' was, but someone would have to find out, to prevent it from being used against others. This horrifying weapon was too terrible to be in the hands of any one person.
Meanwhile, Hinata simply smiled and comforted the disappointed Naruto, who while shocked and horrified over his opponents apparent mental breakdown, was still disappointed that he never got a chance to defend Hinata's honor nor fight to prove he was ready to be a chuunin.