Osio Cafe by Akarenka Yongsan I'Park Mall Branch is on the sixth floor of I'Park Mall in Yongsan, Seoul, and sells classic, French, and truffle salt bread. The butter salt bread is baked to order, and the classic has a crisp and chewy texture. On weekend afternoons the store gets crowded, and the sign is written in Japanese, so the storefront is hard to spot on a first visit. The coffee tastes flat compared with the salt bread.