Chakra

Its been a year since then and Shikamaru was done with every book in the clan, and he had analysed everything and improved on almost everything to a significant degree, his mind would analyse all the new and past knowledge and compile the best version of all of them he was also coming up with variations and many theoretical improvements every moment his mind was active.

If not for his will to grow stronger he would have collapsed from the information overload. But after perfecting his Chakra control and developing his chakra to the level of a high- Genin, he realised that he had grown stronger in the body as well as his mind could operate with more comfort, and there was no pain from the information, and it was automatically sorted and retained.

Every moment he is awake he had been doing subtle techniques to increase his Chakra using chakra control, one of which was using chakra control to hold his hair back, he was not wearing a band to tie it up, and it was pure chakra control, and when he walked he used chakra to make it, so he was always walking a millimetre above the floor as well as using chakra strings to do everything from brushing his teeth to eating.

His parents were already used to the strange sight and he had been sure to not anyone besides them see, he had also controlled his chakra to portray that he hadn't activated it yet so as to not blow his cover.