1boy, 1girl, black_hair, book, breasts, cleavage_cutout, clothing_cutout, facial_mark, fate/grand_order, fate_(series), forehead_mark, fujimaru_ritsuka_(male), large_breasts, long_hair, medusa_(fate), medusa_(rider)_(fate), medusa_(rider)_(third_ascension)_(fate), purple_eyes, purple_hair, simple_background, sitting, smile, takeshi_kai, very_long_hair