Phan Hoang Tu Linh feels she has gotten the hang of working in a Japanese convenience store now, but she admits she found it tough at first.

"We have three cash registers in our store but only two lines to wait in," says the 23-year-old Vietnamese national, who came to Japan to study at a Japanese-language school in Tokyo in July 2017 and started working part-time at a convenience store two months later.

"One of the customers went before another customer who was supposed to be first, but I didn't see it because I was too busy," Phan says. "The customer got really angry and started shouting at me that they were supposed to be first. I felt really bad after that. My co-workers all told me that there was no need for the customer to get so angry and that it wasn't my fault. Sometimes people bring their stress from the workplace and take it out on us."