Head Bartender - ROKA Charlotte Street ROKA is a collection of contemporary Japanese Robatayaki restaurants. First launched in 2004 i n Charlotte street, our London collection has grown to include venues in Mayfair, Canary Wharf and Aldwych. ROKA embodies the spirit of coming together and sharing a collective dining experience, ( RO ) symbolises the atmosphere and ( KA ), the heat of fire from the Robata. Roka