sateto (user knrf2332), rena (blue archive), blue archive, highres, 1girl, black skirt, blush, bow, bright pupils, drill hair, frilled skirt, frills, hair bow, hair ornament, halo, jacket, long hair, long sleeves, looking at viewer, multicolored hair, open mouth, purple eyes, ribbon, sketch, skirt, sleeves past wrists, solo, twin drills, twintails, white pupils, x hair ornament, yellow halo, yellow jacket