I had seen this udon restaurant, Idaten Udon, several times when I walked underground from the City Hall MRT station to Suntec City. Instead of proceeding to Pasar Bella, I stopped here for dinner.
This was a special. The light broth had plum juice (ume) added to it. In addition to the udon noodles there was beef, dried bonito flakes and I added chopped ginger and scallions from the condiment stand.