female sensei (blue archive), hina (blue archive), sensei (blue archive), blue archive, artist request, commission, highres, second-party source, 2girls, black boots, black coat, black eyes, black gloves, black hair, black pants, black shoes, black skirt, boots, breasts, cleavage, coat, coat on shoulders, collared shirt, crossed arms, dress shirt, expressionless, full body, fur-trimmed coat, fur trim, gloves, halo, hand on own hip, horns, id card, knee boots, long hair, long sleeves, looking at viewer, low wings, miniskirt, multiple girls, pants, parted bangs, purple eyes, purple thighhighs, shirt, shirt tucked in, shoes, short hair, side slit, simple background, skirt, smile, thighhighs, tongue, tongue out, very long hair, white background, white hair, white shirt, wings