Create a new vertical Korean–English sale poster, highlighting a massive headline and a coupon at the bottom.
Style: Thick, rounded typography, high contrast, die-cut ticket panels, with a fashion‑advertising feel.
Layout: Vertical composition, English title at the top, event name and dates in the center, and a coupon pack at the bottom.
Exact wording: "MEGA SALE", "BRAND SALE", "전 상품 쿠폰팩", "25%", "2026.08.10-08.17".
Language: Maintain a primary relationship between Korean and English, without adding other languages.
Design changes: Use black, cream, coral, and mint, and rearrange the placement of the headline and coupons.
Background: Deep black base with cream tickets, accented by mint and coral highlights.
Removals: Specific brands, logos, watermarks, URLs, QR codes, asterisk notes, and small terms and conditions.
Avoidances: Original replication, original colors, random small text, typos, and copyright‑related brand elements.