1. Unstable working hours: The special and irregular working hours at night will affect employees' work and rest and life rhythm, and have a certain impact on recruitment. Some people prefer stable working hours during the day to working at night.

2. High risks and requirements: Sashimi shops have high requirements and expectations for employees, and need to master professional sashimi technology and food safety knowledge to ensure food quality and customer health and safety. This will increase the difficulty of recruitment, because people with relevant skills and experience need to be found.

3. Working environment and treatment: The working environment for night shift work is rather difficult, with long working hours, great pressure and shortage of staff. In addition, the wages and benefits of night shift work are relatively low, which may also affect people's interest and motivation in night shift work.