Muteppou

Look out for the red lantern and huge noren curtain to find this renowned ramen shop dealing exclusively in super-thick tonkotsu soup, an extremely simple but incredibly flavourful concoction made with nothing but domestic pork bones and water. The standard dish (¥750) can be customised endlessly at no extra cost, so go ahead and set your preferred level of noodle firmness, soup thickness, toppings and so on. They also offer a free serving of either seafood- or pork-based side soup, while available seasoning includes rarities like spicy takana leaf and garlic soy sauce.