1girl, banned_artist, between_breasts, black_shirt, blue_eyes, blue_hair, breasts, byleth_(female)_(fire_emblem), byleth_(fire_emblem), cleavage, cleavage_cutout, clothing_cutout, fire_emblem, fire_emblem:_three_houses, grey_background, hair_between_eyes, large_breasts, letter, long_hair, looking_at_viewer, shimizu_akina, shirt, short_sleeves, simple_background, smash_invitation, smile, solo, super_smash_bros., upper_body