By the way, it's smoky.
doesn't need to leave Monnaka.
There you go. Iseya - go for the smoke and atmosphere and low prices, eat the gyoza and shumai, eat some more gyoza, get outta there. Personally, I'd go directly across the tracks (just northwest of the station) and pick a bar in Harmonica Yokocho after this, just to complete the nifty atmospheric trifecta.
Although you'd need one more place to make a trifecta. Maybe go for the exacta instead?