Punnily named Ichibuns (ichiban refers to the number one in Japanese) is kitted out in rock-and-roll Tokyo-inspired decor, with house plants, hanging lights and multi-coloured scatter cushions spread over its three floors. The playful aesthetic extends to the menu, which kicks off with inventive snack offerings such as crispy panko-fried chicken wings served with a neon-yellow smoked sauce, or crunchy spring rolls stuffed with slow-cooked wagyu beef, spring onion and Romano pepper. The stars of the show, though, are the gut-busting Asian-style burgers. We loved the Ichiban, which featured the classic offering of beef patty, melted cheese, gherkin, red onion, tomato and smoky barbecue sauce. More adventurous options include the Hokkaido – two beef patties topped with shiitake mushrooms, earthy white truffle oil and a punchy blue cheese fondue – while thin and crispy French fries are the obvious side order. For pud, we opted for the green tea profiterole, a giant green choux bun encasing a scoop of vanilla ice cream, with sticky chocolate sauce to drizzle over the top. Don’t fancy dessert? Try one of the tooth-achingly sweet shakes instead, including the Sakura Cherry Blossom (milk and cherry ice cream with marinated cherries, pink and white marshmallows and cherry sauce). Fast, fun and reasonably priced for its location, Ichibuns is earmarked for a rollout, so all of London should be itching for these burgers soon.