Why so blue. (Private, Training)

Five menos later and she was getting confident that she was now the master of the cero. Which was nonsense of course, she had seen others, vasto in fact, shoot much better, taking out targets the size of pin pricks at 100m with a narrow cero the colour of...the colour of...not red. Not red? She paused, looking at her hands. Not red...Hmm. She travelled higher into the pillars of stone, creating an ice platform where she could practice away from the prying eyes of hollow and the majority of grande. Hoping none attacked from below, as that would probably make her fall an uncomfortable distance. She practised first with a narrow beam, the difference in reiatsu being the same of course, but figuring it would be harder to see than a larger beam. She fired at the pillar across from her, definitely red. Why red. Her favourite colour was blue, a nice icy blue. So why red. How did the vasto do it. She pondered this, trying several different styles, pretending there was a blue filter on the end, but this only succeeded in nearly blowing her up with a cap on the end of the cero. Then it clicked. She was channelling reiatsu, her reiatsu. Maybe it was not the cero that changed colour, maybe it was because the reaitsu used to create it. She charged it up, holding it and forcing...she was not sure, just more blue reiatsu into it. Visualising a blue cero and pushing that thought into her hand, then releasing it. Red...wait, the end, it was slightly purple. Hope fluttered in front of her, charged again, this time pushing the thought before the reiatsu, using the thought, the command, as the filter. She fired, a blueish red edge spilled out, spluttering all over the place. She had not focused on control. She tried again, containing her excitement, aiming, focus...an explosion below her as a cero smashed through the floor, her arm snatching out at the end and releasing her cero at the menos grande staring up at her from below. Her Cero. A beautiful, perfect, icy blue cero. That beautifully cleaved through its skull, and beautiful exploded on the ground behind it. Sending beautiful blue sparks into the air.

After that it was a walk in the park leaving the place. Having mastered the master of the cero, and even changed the colour, which she was even more excited about. She played with it all the way out of the forest. Large blue cero, narrow blue cero, large blue bala, narrow blue bala. Every being perished before her icy blue onslaught. Out into Hueco Mundo. Out into the white sands. Painted blue, and splashed red.