2 cups  Water

1.5 cups  Short Grain White Rice , uncooked

1.5 cups  Coconut Milk , divided

1 cups  White Sugar

0.75 tsp  Salt , divided

1 tbsp  White Sugar

1 tbsp  Tapioca Starch

3  Mangos , peeled and sliced

1 tbsp  Toasted Sesame Seeds