Hard work and long hours have never seemed to bother former model Sherry Ang, who got her first taste of running a business when she was still a teenager.
Ms Ang, who started modelling and starring in television commercials at 18, took on the job of managing a modelling agency just a year later.
It involved sorting out the assignments of the girls and organising events for firms.
The main eatery opened last September at 100AM mall in Tanjong Pagar while an express outlet started at OUE Link recently.
The move into food came three years after Ms Ang worked at a firm that sells foreign real estate, a job she took up after university.
"I worked really hard, seven days a week. In the property business, weekends are the main thing where we do shows, product launches for developers, and I had a lot of paperwork to do on weekdays," she says.
"You learn a lot, such as how to structure loans for people."
Being a workaholic took a toll on her love life.
"A lot of guys cannot handle girls who work so much. But I have a lot of energy and still tried to go out, even if I ended work at 9pm or midnight."
It was only after meeting her Indonesian-Chinese fiance 2 1/2 years ago that Ms Ang started thinking about scaling back.
"I had to quit my job because it was really intense. He used to come look for me every other weekend when we were dating and I'd be working until 8pm," says Ms Ang.
That eventually led her to start Sushi Burrito, which she runs with a partner.
"Eventually I thought, girls at this age have to plan for themselves so I decided to rest a little bit. Then I started my own business, which is work 24/7, but you can plan your own time and that's better."