Poster Art illustration, a bold vertical title poster, low angle from below. RKN-chan, a commanding woman in her late twenties with long pale blue hair with blunt bangs tied in two high pigtails and cold, confident blue eyes, stands with her arms crossed and her feet apart. Her pigtails are held by dark blue cube-shaped hair clips marked with a single straight white line running across the cube from edge to edge, interrupted in the middle by a hollow white square. She wears a long double-breasted blue jacket with two rows of round gray buttons, light blue piping, black epaulettes and pointed coattails, white scalloped cuffs, a white shirt and a narrow dark blue tie, light blue leggings and blue knee-high boots. On her left sleeve is a white-bordered polygonal patch bearing the bracket emblem: a tilted square made of two thick angular bracket shapes. The upper-left bracket is light blue and opens toward the lower right, the lower-right bracket is dark blue and opens toward the upper left, and they face each other around a small dark blue square in the center, separated by narrow white gaps. Behind her, filling the whole background, towers a giant version of the bracket emblem: a tilted square made of two thick angular bracket shapes. The upper-left bracket is light blue and opens toward the lower right, the lower-right bracket is dark blue and opens toward the upper left, and they face each other around a small dark blue square in the center, separated by narrow white gaps. Large bold white title lettering across the bottom reads RKN-chan. Flat graphic shapes, strong silhouette, white, light blue and navy palette, a soft radial glow behind her head.