[SEO JI-EUN] In addition to the original mixed coffee (2,500 won, $1.80), they also infuse traditional Korean flavors, such as roasted rice (3,500 won), roasted chestnuts (3,500 won) and green tea ...

Kim and his business partner, Ming Han Chung—a former Duluth High School classmate—began to kick around ideas for a start-up.