1boy, 1girl, ?, blush, breasts, cellphone, cleavage, closed_eyes, collarbone, comic, faceless, faceless_male, fate/grand_order, fate_(series), fujimaru_ritsuka_(male), greyscale, holding, holding_phone, jeanne_d'arc_alter_(fate), koyuki_(kotatsu358), mash_kyrielight, monochrome, one-piece_swimsuit, parted_lips, phone, pleated_skirt, school_swimsuit, school_uniform, short_hair, skirt, smartphone, smile, speech_bubble, spoken_question_mark, swimsuit, teeth