1girl, bent_over_backwards, blood, blue_background, blue_eyes, blue_hair, blue_one-piece_swimsuit, blush, breasts, chibikki, collarbone, english_text, from_behind, halo, hand_on_own_face, heart, leaning_back, looking_at_viewer, looking_back, nanako_(chibikki), one-piece_swimsuit, open_mouth, original, pink_blood, pixel_art, school_swimsuit, short_hair, small_breasts, solo, swimsuit, text_background, tongue, tongue_out