Create a five-panel historical manga illustration showing how Clarence Saunders's 1916 invention of the Piggly Wiggly self-service grocery store triggered an unexpected "butterfly effect" across American consumer culture and finance. Visual style: Semi-realistic anime manga / historical educational comedy manga. 1920s American atmosphere, expressive characters, detailed period backgrounds, dynamic comedic facial expressions. Japanese dialogue and Japanese explanatory text. All visual descriptions and instructions are in English. Do not depict any copyrighted characters. The butterfly is a recurring visual motif: a small butterfly appears naturally in every panel, symbolizing the butterfly effect. Keep the same butterfly design throughout the panels. Panel 1 — Memphis, Tennessee, 1916: Inside the first Piggly Wiggly self-service grocery store. The store has an early 20th-century American interior, open product shelves, shopping baskets, and a one-way customer circulation route leading toward the checkout. A male customer looks astonished. Dialogue: 「なんだ！？こんな店初めて見たぞ！！」 A female customer looks surprised. Dialogue: 「変わった店ね。自分で商品を取るの！？」 A small butterfly is flying quietly in the background. Panel 2 — Piggly Wiggly, 1916: Inside the same store. Customers happily select products themselves from the shelves and place them into shopping baskets. A cheerful female customer examines products carefully. Dialogue: 「自分でじっくり商品を選べるわ！！」 A pleased male customer compares prices. Dialogue: 「他の店より値段が安いぞ！！」 A small butterfly is visible again, continuing its flight. Panel 3 — The 1920s: Time has passed. Inside a Piggly Wiggly-style self-service grocery store filled with individually packaged consumer products. Two worried manufacturer employees examine packaged goods on the shelves. Manufacturer employee A looks alarmed. Dialogue: 「これじゃ店員さんが説明してくれないぞ！？」 Manufacturer employee B looks panicked. Dialogue: 「商品の特徴をパッケージに書かなきゃ！！」 Emphasize colorful but historically appropriate early consumer packaging, labels, brand names, and printed product information. A small butterfly flies through the scene. Panel 4 — The 1920s, outside the store: A Piggly Wiggly store stands in an American city street. A street-side radio broadcasts consumer advertisements. Several pedestrians stop and listen to the radio. The radio itself is visible, with sound-effect lettering indicating a commercial broadcast. Radio voice: 「ウイーティーズを食べたことある？」 「毎晩寝る前にペプソデントで歯を磨きましょう」 Show the growing presence of direct-to-consumer advertising and brand awareness. A small butterfly continues flying through the scene. The panel should visually suggest that the influence of self-service retail has spread beyond the store itself. Panel 5 — Wall Street, 1923: Dramatic scene change to Wall Street in New York City, 1923. Busy financial district, stock tickers, brokers, newspapers, and excited traders. Two speculative investors discuss short-selling Piggly Wiggly stock. Investor A, scheming: 「ピグリーウィグリー株の空売りで一山儲けるぞ！！」 Investor B, confidently dismissive: 「こんな地方の食料品チェーン、簡単に下がるだろ！」 Clarence Saunders appears in the scene, angry but defiant, dramatically confronting the speculative investors. Saunders: 「勝てるもんならやってみな！！」 Make Clarence Saunders visually recognizable as an early-20th-century American businessman, but do not make him look like a modern businessman. The butterfly is slightly larger and more noticeable than in the previous panels, symbolizing that the butterfly effect has grown dramatically. Overall composition: Clearly separate all five panels with strong manga panel borders. Make the chronological progression visually obvious: 1916 → 1916 → 1920s → 1920s → 1923. The butterfly should subtly connect the panels, suggesting that a tiny change in retail shopping has gradually spread into packaging, advertising, consumer culture, and finally Wall Street. The overall tone should be humorous, historically grounded, and slightly absurd. The central joke is that Clarence Saunders merely tried to create a more convenient grocery store, but the consequences kept spreading far beyond the grocery store.