True to its name, this favored counter is indeed hidden in the thick of busy Wynwood. The front door is not easy to find and slides open only with a time-sensitive passcode. But beyond the hustle and bustle, Chef Seijun Okano offers a mature, finely tuned omakase for the fortunate few seated at his counter. Fish flown in multiple times a week from Japan are handled with precision, sliced carefully and pressed into lush, vinegar-tinged rice that he makes at the start. Everyone is encouraged to ask questions and drink freely. All the while, the team works in perfect tandem, delivering a well-paced sushi experience to the tune of an upbeat playlist. In the end, diners emerge from the secret room wondering if those around them know what they’ve missed.