Start by making your lemongrass simple syrup. Peel off any tough outer layers, then chop the lemongrass into 1-inch pieces. Smack them down to open them up a bit (like you would with garlic). In a small saucepan, combine the water, sugar, and chopped lemongrass pieces. Bring the mixture to a gentle boil, then reduce the heat to low to maintain a simmer for about 15 minutes. Stir occasionally. After simmering, remove the saucepan from the heat and let the syrup cool to room temperature. Strain into a bottle and cool. To make your drink: add ice to a spritz glass. Add simple syrup, lemon juice, yuzu, NA liquor (optional), and coconut water. Top off with sparkling water and garnish with a lemon wedge. ENJOY.