Even though there is much yet to be known about the girls introduced so far, There is probably some confusion that needs to be cleared up STAT.
'Tofu' and 'Cocoa' are most likely the easiest to understand. But thorough analysis will come later.
'Rambutan' is the most confusing of all.
That is the Rambutan fruit. It is a tropical fruit native to Malaysia, Indonesia, The Philippines, Sri Lanka and Southeast Asia. It is closely related to several other edible tropical fruits, like the Lychee.
The white part is very sweet, refreshing, and tasty~
Of course, the reason this name was chosen will come later on.