karukan (karukann), mitsukasa ayase, riddle joker, commentary request, 1girl, :/, between breasts, blunt bangs, blurry, blurry background, blush, breasts, chair, clenched hand, closed mouth, collared shirt, eyelashes, eyes visible through hair, frown, hair between eyes, hair ornament, hand on own cheek, hand on own face, hand up, indoors, jacket, lips, long hair, long sleeves, looking at viewer, necktie, necktie between breasts, nose blush, on chair, open clothes, open jacket, pink hair, purple eyes, red necktie, shirt, sitting, solo, straight hair, tsurime, upper body, v-shaped eyebrows, white shirt, wing hair ornament, yellow jacket