Create a lively and attractive Japanese supermarket insert flyer in a vertical 9:16 layout. Use a loud retail-sale design with a giant red headline for a special weekly sale at the top, a date-range panel, bright yellow and red backgrounds, thick outlined typography, and many rectangular product-photo panels. Show fresh tomatoes, cucumbers, bananas, apples, sliced beef, tuna sashimi, salmon, pantry items, paper goods, mayonnaise, and beverage multipacks, each paired with red starburst price tags, small tax-included price notes, short Japanese-style sale callouts, and crowded flyer typography. Keep all store names, logos, QR codes, brand marks, prices, and product labels fictional or generic. Make the composition energetic, readable as a supermarket bargain flyer, photo-collage based, high-resolution, print-advertising style, and visually clear at 4K quality. Output aspect ratio: 9:16.