Mix yogurt and cream cheese until smooth.
Add sugar and lemon juice, and mix well.
Soak gelatin in water, then melt it in the microwave and add to the mixture.
Prepare biscuits (or sponge cake) and lay them in the cake mold.
Pour the prepared yogurt batter into the mold.
Refrigerate for at least 3~4 hours until set.
Decorate with desired fruits, jam, etc.