1girl, ass, blush, book, breasts, butt crack, cleavage, collarbone, corrin (female) (fire emblem), corrin (fire emblem), cosplay, dark mage (fire emblem fates), fire emblem, fire emblem fates, grey hair, hairband, holding, holding book, indoors, kashiwamochi yomogi, large breasts, leotard, long hair, looking at viewer, no cape, nyx (fire emblem), nyx (fire emblem) (cosplay), pointy ears, red eyes, see-through, sideboob, skin tight, smile, solo, upper body, very long hair