A pioneer of Tokyo's craft cocktail revolution, Bar Trench takes its name from the trench-like alley where it's nestled in Ebisu. The tiny space has the air of old-world bohemianism — think absinthe fountains and hand-drawn diagrams of ingredients. Try the 'Shady Samurai', a green-tea-infused gin creation with elderflower and lime that perfectly bridges Japanese and European flavours. If it's full, ask for directions to sister bar Tram one block over.