I picked these instant noodles up at HMart in the same trip I bought the Nongshim Shin Spicy Cup Noodles. Actually I picked a lot of things up this trip. Nevermind that I spent like $250 because I went a bit overboard buying ingredients for Japanese hot pot and gyūdon, but you definitely need at least mirin, sake, soy sauce, dried anchovies and 25 lbs of short-grain rice to make gyūdon from scratch. Maybe I'll post a recipe here when I make it again since I still have about 25 lbs of short-grain rice to do this with.
Ottogi Yeul Ramen comes in two form factors, bowl and package; I got the bowl because I love that it's all self-contained and only needs hot water to make. In the bowl is a powder flavor packet; there are dehydrated vegetables already in with the dry noodles.
The package recommends pouring boiling water over the noodles and waiting four minutes but I overcooked it by a few minutes by mistake. The noodles were still pleasantly firm despite this which surprised me. The noodle taste is fairly neutral and, since they soak up some broth, lets this flavor shine though instead, which is very light and thin. The broth taste is not aggressive but is redolent of mushrooms or fish stock. There's no fish in this but there are dried little mushrooms, maybe lending to that taste.
The green onion is a nice touch and they rehydrate well in the broth; the vegetables otherwise are not remarkable. The mushrooms are actually net negative since they somehow lose all firmness and texture.
The broth is spicy but not as spicy as the Nongshim Shin I mentioned earlier. It does not have an aggressive or deep flavor, I'd describe it as light, thin, and similar to an iriko dashi, a comparison which is top-of-mind as I made this type of fish stock yesterday for gyūdon.