Core Viewpoint - The article emphasizes the importance of continuous product innovation in successful bakeries, highlighting the integration of local ingredients and baking techniques to create flavors that resonate with the community [1]. Group 1: Company Overview - "이성당 (Lee Seongdang)" is recognized as the oldest bakery in South Korea, established in 1945, located in the central area of Gunsan [5][7]. - The bakery has a rich history, originally founded in 1920 by a Japanese individual and later taken over by Lee Seok-woo in 1945 [7]. - It is celebrated as one of the three major bakeries in Korea, alongside "Sungsimdang" and "Mammoth" [8]. Group 2: Popularity and Community Engagement - "이성당" is a popular pilgrimage site for bread lovers and a must-visit location in Gunsan, gaining attention from a KBS1 special titled "100-Year-Old Stores" [9]. - The bakery donates bread to orphanages and nursing homes weekly, emphasizing a philosophy that views donations as a service to customers, producing fresh bread specifically for this purpose [12][13]. Group 3: Product Offerings - The bakery offers around 200 different products, with the most popular being red bean bread and vegetable bread, reportedly selling over 10,000 pieces daily [14]. - Red bean bread is made with rice flour instead of wheat flour, catering to customers with wheat allergies, and is limited to 5 or 10 pieces per person due to high demand [17]. - The bakery also features innovative products, such as croissants filled with fresh cream and Belgian orange jam, and seasonal offerings like red bean porridge [37][44]. Group 4: Marketing and Innovation - "이성당" actively engages in product innovation, updating packaging designs, participating in various events, and launching seasonal products [35][58]. - The bakery's red bean and vegetable breads have become representative specialties of the region, showcasing a blend of traditional craftsmanship and modern market insights [76].