Create a fresh portrait-format Korean year-end sale poster with comic-book energy.
Use a vivid palette of cobalt blue, coral red, mint, cream, and black.
Set the exact Korean headline to “2026 끝내주는 세일” in large bold display lettering.
Add the exact English line “THE LAST BIG SALE” as a compact secondary headline.
Make “UP TO 80%” highly prominent and include the exact date “12.10-12.22”.
Use lightning bolts, halftone bursts, speed lines, and layered ticket fragments for momentum.
Do not include any brand names, logos, watermarks, barcodes, QR codes, URLs, or fine print.
Render as a polished static portrait PNG with clean edges and legible Korean and English text.
