Triangular gimbap was first made in Japan. At first, the name was Onigiri. It was ball-shaped and made to serve quick meals during war. Triangular gimbap was introduced to Korea during the 1990s. In 1991, 7-Eleven began to sell it. Family Mart and GS25 followed it. Nowadays, there are various flavors and types of triangular gimbap: tuna with mayonnaise, Jeonju bibimbap, bulgogi, spicy tuna, cheese spicy chicken, and so on.