Bun99 is a small Vietnamese restaurant in the alley behind the rear gate of Hankuk University of Foreign Studies in Imun-dong, Dongdaemun-gu, Seoul. Its beef pho uses a clear, light brisket broth with thick noodles and meat, while the tomato seafood pho has a pronounced tomato flavor and a spicy sourness. Sets pair pho with side dishes. The place draws a crowd and tends to be busy.