horosuke, choukou (alicesoft), choukou taisen escalation heroines, official art, 1girl, aldebaran (escalation heroines), bare shoulders, black background, blonde hair, blue eyes, breasts, cleavage, cleavage cutout, clothing cutout, fishnet thighhighs, fishnets, full body, glasses, holding, holding pointer, holding staff, lab coat, large breasts, looking at viewer, pointer, solo, staff, tachi-e, thighhighs