Eunyoung has the gummy drop implants and so does Babbyyang and Berry has the the gummy bear; the silicone gel kind, which are soft. You also have to go to the doctor to keep them maintained. None of them are natural, all enhanced. They have also got the liposuction/tummy tuck/smooth tuck procedures, you can clearly see that, if you have looked into any of this. It's as obvious as peanut butter and jelly and white on rice.
From looking you can also see that they have gotten the stretched eyelids and rhinoplasty, which has been mentioned. Their stomach and breasts have a rubbery look to them. Some of them like velvet_7 even uses the face proportion filter.
You can also add the liposuctioned fat to your breasts as well. They have gotten every option covered, everything you can imagine can be done. You will one day realize that none of their breast are fully natural. None of them. If they've gotten their eyes, lips and stomach worked on, that tells you everything. Some girls even do the collagen injections when they don't even need them. They are competing to be/stay beautiful and make a lot of money.