I love Jang Su Chon, but a couple of months ago there was a fire on one of the upper floors where there were apparently some rooms rented (a man died, sadly). It had nothing to do with the restaurant or its owners except the damage and the ensuing issues have so far resulted in no repairs. I've gone back every couple of weeks to check, but while Ka Chi next door is up and running, Jang Su Chon is still OOC.
The owners are very sweet people and they had a great restaurant. They would often bring unordered dishes for free. I wish them all the best and hopefully they will return soon. Losing Jang Su Chon and Oishi Kada in Kensington Market within several months of each other is tough.