1girl, azur_lane, blush, book, breasts, cleavage, cross, gloves, greyscale, holding, holding_book, hori_(hori_no_su), iron_cross, large_breasts, long_hair, looking_at_viewer, monochrome, open_book, parted_lips, peter_strasser_(azur_lane), simple_background, sitting, smile, solo, twintails, white_background