Tanon55 Seongsu Main Branch is on the second floor of an alley near Seongsu Station, serving Thai-style pho, curry, and fried rice. The gamjatang pho comes with large pork spine bones and a deep, rich broth, while the mutaeng curry pairs crispy fried pork with yellow curry. The tom yum goong seafood pho is heavy on spices, and takeout and delivery orders are available. The piset pho is topped with fried pork, meatballs, minced pork, and shrimp.