1girl, black shirt, border, breasts, byleth (female) (fire emblem), byleth (fire emblem), cleavage, enlightened byleth (female), fire emblem, fire emblem: three houses, green eyes, green hair, hair between eyes, hair over shoulder, kin mokusei, large breasts, light blush, long hair, looking at viewer, portrait, shirt, solo, upper body, v-shaped eyebrows, white border, yellow background