Just chocolate and milk! A perfect dessert made of 2 ingredients. Without baking, ready in 5 min

Ingredients:
dark chocolate - 100 g (3.5 oz)
sugar - 80 g (2.82 oz)
cocoa - 50 g (1.76 oz)
agar agar- 10 g (0.35 oz)
milk - 350 ml (11.83 fl oz)
whipping cream - 450 g (1.76 oz)
IN THE FRIDGE 30 minutes

for the glaze:
dark chocolate - 100 g (3.5 oz)
hydrated gelatine - 2 g (0.07 oz)
whipping cream - 30 ml (1 fl oz)
IN THE MICROWAVE OVEN 1 minute

for the drink:
lime - 2 pieces
mint - 20 g (0.7 oz)
sugar - 10 g (0.35 oz)
carbonated water - 200 ml (6.76 fl oz)
ice - 2 cubes