Baek Sojeong Hongdae Hapjeong is a Japanese restaurant between Hongdae and Hapjeong that serves donkatsu, maze soba, udon, and soba. Thick raw sirloin donkatsu, mozzarella cheese katsu, and chewy maze soba can be ordered as a set. The large space has many seats, making it suitable for solo meals and dates. After finishing the noodles in the maze soba, you can add rice and mix it in.