In the winter of 2010, only 25 years old with just 100,000 won to his name, Oh Bong-gu started selling rice burgers out of cardboard boxes on the streets of Suwon. For 2 days, he didn't sell a single one. Finally, on the 3rd day, some boys came up to him and asked how much they cost. And that's how it started. Within a short time, his business grew to 100 rice burger sales per day. Then, as the operation expanded, it grew to 1000 sales per day. In March 2012, he opened up a decent full-size store. By August, he started franchising and has watched his former cardboard box street frontage grow to 126 stores across the country. A great success story certainly must have some secret to it. And the secret lies in the menu, where he's discarded the typical bun and created a truly fusion burger for the Korean market. Varieties include bulgogi burgers, kimchi burgers, spam burgers. Hell, they even have a ramen burger, which features ramen and kimchi sandwiched in between two slabs of tightly packed sticky rice. Judging from the website, they literally have locations everywhere. Interested in finding one near you? Leave a comment below and we'll dig up some directions for you.