Insatiable curiosity about all things tempura is this restaurant’s driving force. The chef blazes his own trail, unencumbered by convention. In a one-of-a-kind technique, the chef prepares his batter using two types of water as well as liquid nitrogen. One menu item features chilled sea urchin on deep-fried perilla leaf, creating a contrast of cold and hot. Inventive dishes are slipped in between menu items, varying the pace. The chef takes pride in offering an extensive range of tempura pieces, letting his imagination run free.