Kagayaku is a restaurant near the Munjeong Station commercial district in Songpa-gu, Seoul, serving udon, tonkatsu and izakaya dishes. Its signature item is the jidori udon set, which comes with two or three pieces of fried chicken along with scallions and seaweed, and the size can be increased. Lunch is busy enough that arriving at 11:20 can still mean a 30-minute wait, and there is a break time. The udon toppings are on the small side.