This figure is Figma Hatsune Miku, part of the Max Factory Figma line. Figmas are known for being incredibly well detailed, amazingly articulated, and come with awesome accessories and extra hands and faces to create different scenes with whichever Figma you decide to get. Hatsune Miku is a character from the VOCALOID series created by Yamaha, and this Figma version of her was my first "holy grail"; that is, a toy/figure/whatever that you would do almost anything to get your hands on. I was incredibly lucky and bought the last one off of a site called Angolz [which had great service, by the way :D].
