Home › Blog › Postcard › Postcard from Oakland: U-MART Opens Tonight! Postcard from Oakland: U-MART Opens Tonight! Kayoko Akabori on Jun 25, 2013 Come out tonight for the grand unveiling of U-MART, the Bay Area's first conbini. We can't wait for you to meet our new fridge!!! Details on the PARTY OF THE YEAR here. See you tonight! GET EXCITED.