Japanese Oyster Shooters

Whisk mirin, sake, soy sauce, rice wine vinegar, and wasabi powder together in a bowl. Allow the mixture to sit at room temperature for 2 hours so that the sediment sinks to the bottom of the bowl.

Shuck oysters and place 2 oysters in each shooter glass.

Ladle 2 tablespoons of the mirin mixture into each glass, without disturbing the sediment at the bottom. Crack 1 quail egg into each glass. Top each with 1/8 teaspoon tobiko and garnish with lemon wedges. Serve immediately.