Isu Station Japanese dinner with sofa seats, full house: Kosi
Kosi Isu Branch is a Japanese restaurant serving house-made udon and tonkatsu near Isu Station in Dongjak, Seoul. Visiting at 6:30pm without a reservation for two, the writer found the place fully packed but scored a sofa seat, ordering toriten bukkake udon for ₩11,000 and mixed tonkatsu for ₩13,500, with the chewy cold udon soaked in unsalted sauce the standout dish. If choosing just one menu item again, it would be the bukkake udon.