Tsuru Tsuru Ramen is a Japanese ramen shop in Seoul that serves tonkotsu ramen, with Tsuru Tsuru tonkotsu, tonkotsu light, and spicy tonkotsu on the menu. The rich broth comes with a soft-boiled egg, and diners can add raw garlic and free rice. It is set up for eating alone, and the spicy and light versions let diners choose their preferred broth. The basic tonkotsu broth is oily and rich.