I know I haven't been active on my fics lately but no one reads them anyway so I guess it doesn't matter anyway. The setting of this story is 5 years after the beginning of the main series, making Karin 16. My OC provides the summary.
Captain Toshiro Hitsugaya was taking a morning walk through his squad's barracks when he sensed a familiar Reiatsu around the corner, so it wasn't a surprise when he saw Zero squad lieutenant, Regar, as he was known to all. "What is it?" he asked with some apprehension, because Regar only showed up when there was something concerning some sort of inter-dimensional cataclysm. That and to cause wacky adventures which ended with people wanting to kill whoever was involved in it and a happy couple thanking him for putting them together.
He had an extremely serious look on his face. However, Toshiro had learned that that look was often a smokescreen. He replied "Oh, I just wanted to tell you that Karin Kurosaki has just graduated the academy top of her class after just a year. But of course you know that, don't you?" Toshiro had the feeling he was about to plunge into a wacky adventure.
Just as that thought crossed his head, Regar threw a small pellet at his feet which engulfed the both in a thick cloud of smoke. The smoke cleared almost instantly, and Toshiro exclaimed, "What the hell was that!"
That was when he noticed something strange about his clothes. They were over twice as big as normal. After that he noticed a sharp pain in the side of his neck. He felt the area and pulled out a small, empty capsule, the contents of which had obviously been injected into his neck. Before he could do anything about it, everything became dark and he passed out.
A few hours later, Toshiro awoke in his office, behind his desk. He remembered the whole incident clearly and felt his clothes. They were a perfect fit as usual. However, he felt different. Before he could give it any thought, however, his lieutenant burst in, carrying a large stack of paperwork. She said "Captain, could you do some of my paper-Aaaaaaaaaaaaaahhhhhhh! Who are you and where is captain Hitsugaya!" "What are you screaming about? I'm right here!"
She looked curiously at him and said, with a look of realization, "Captain! You've had a growth spurt!" "What are you talking about, Rangiku?
She proceeded to drag him out of his office and in front of a mirror. When he looked, instead of seeing an apparently eleven year old, he was looking at a sixteen year old version of himself!
