kouji (campus life), yuuka (blue archive), yuuka (track) (blue archive), blue archive, highres, 1girl, black shirt, blush, breasts, gym shirt, gym uniform, halo, jacket, jacket partially removed, long hair, looking at viewer, mechanical halo, medium breasts, official alternate costume, partially unzipped, ponytail, purple eyes, purple hair, shirt, simple background, solo, track jacket, white background