Seongsimdang Cake Boutique Main Store is a cake specialty shop of Seongsimdang in Daejeon, selling cakes and desserts. Its signature items are fruit siru and Sunsu roll; the Sunsu roll is received at the store, while the fruit siru is picked up separately at the building next door. Even at 8 a.m., the wait for pregnant customers was about one hour, and after paying for a cake you show the receipt to pick it up at the next building. The line continues all day, and inside the store people choose and pay while being pushed by the crowd, so it is crowded.