Honney,
After thinking through what is wrong with my lotus seed paste, I guess the other reason for "looking wet" is because I have placed them in the freezer after making them on Sunday.
Thus, when I have taken them out from the freezer on Tuesday night and wait for it to melt, it would look like some very very hard ice turning into water.
I guess I should place the cooked lotus seed paste on the refrigerator (lower compartment) instead of in the freezer. Stupid me :-( :-(