isegawa yasutaka, yuuka (blue archive), yuuka (pajamas) (blue archive), blue archive, commentary request, highres, 1girl, black halo, blue eyes, blue hair, blue pajamas, blue shirt, blue shorts, blush, breasts, breasts apart, center opening, closed mouth, collarbone, hair between eyes, hairband, halo, long hair, looking at viewer, medium breasts, no bra, nose blush, official alternate costume, official alternate hairstyle, on bed, pajamas, pillow, shirt, short shorts, shorts, single bare shoulder, single off shoulder, sitting, solo, sweat, thick thighs, thighs, white hairband, yokozuwari