2girls, 5boys, artoria_caster_(fate), artoria_caster_(third_ascension)_(fate), artoria_pendragon_(fate), fate/grand_order, fate_(series), horns, king_hassan_(fate), konniqiwa, long_hair, looking_at_viewer, marmyadose_(fate), merlin_(fate), multiple_boys, multiple_girls, navel, olga_marie_animusphere, red_eyes, romulus_(fate), romulus_quirinus_(fate), single_horn, stomach, super_orion_(fate), tai_gong_wang_(fate), u-olga_marie, very_long_hair, white_hair