Tebo is a Japanese restaurant in the alleys of Sinsa Garosu-gil that serves house-made Sanuki udon. Its bukkake udon and kamabata udon have chewy noodles, and its mosijogae kake udon is defined by a clear, cool broth. A noodle-making machine sits at the entrance, and single-seat counter spots make it easy to eat alone. A wait can form at Garosu-gil.