middle and high grade. Douku is one of the catering brands under Yangzhou Douku Coffee Co., Ltd., which specializes in Chinese food and other dishes. All kinds of special dishes and high cost performance have been welcomed by many customers. The joining cost of Douku is between 1.5 million yuan and 1.9 million yuan. The investment area is facing the whole country, and the business model is chain, which belongs to middle and high-grade catering.