projecttiger, kasane teto, kasane teto (utau), utau, commentary, 1girl, ahoge, bare shoulders, bespectacled, black-framed eyewear, black shirt, black sleeves, blush, buttons, closed mouth, collared shirt, detached sleeves, double-parted bangs, drill hair, glasses, green background, hair between eyes, long sleeves, looking at viewer, nail polish, no lineart, over-rim eyewear, portrait, red eyes, red hair, red nails, semi-rimless eyewear, shirt, short hair, sleeveless, sleeveless shirt, smile, solo, sparkle, twin drills