Ittenko is a Japanese ramen restaurant in Seoul that serves basil pesto ramen and spicy tonkotsu ramen. The Midorikame basil ramen comes with chewy noodles and chashu, and the Kiyomasa spicy ramen is flavored with yuzu. The shop is a small space with only a U-shaped counter, and food comes out quickly. In winter there is nowhere to hang coats.