SAITAMA--Sweet manju buns themed on a mobile" Dragon Quest" video game have proved to be hot sellers for a maker of Japanese snacks in Saitama Prefecture, north of Tokyo.... The limited-edition" Juman Gold Manju" buns were made by Jumangoku Fukusaya Co.in the Saitama Prefecture city of Gyoda, in collaboration with the game" Dragon Quest Walk." They feature the popular character Slime that recurs in the game franchise.... Jumangoku Fukusaya Co.is known for its Jumangoku Manju confections, made