Nowadays, studying in the U.S. has transformed from an elite endeavor to "mass study abroad," but the problems that come with it seem to be getting worse. We often witness or hear about many returnees struggling to find jobs. Initially, we occasionally heard the term "sea turtle (return)," then later we frequently heard "seaweed (waiting)," and now we hear "sea cucumber (leftover)." These terms refer to those who are left over, having lost even the chance to wait. The phenomenon of "sea leftovers" shows that diplomas are no longer a guarantee of employment, and staying abroad or returning home may render them useless. Why has it evolved from "sea turtles" to "seaweed" and now to "sea cucumbers," with the latter increasing at an accelerating rate, especially as younger students join the ranks of overseas learners? This issue is becoming more severe. I believe that for many students, we can only say they are "studying abroad" but not "successfully studying abroad," as there is a world of difference between the two.