23小留女 chose to "pursue" a PhD at a *medical school* where there were enough 小中男MD and residents who had to do some research along with PhDs.
One year was enough to beat a young white nurse who was not well educated, 28小中女MD who was too busy at resident duty to date anyone, and....
The cost to 小留女 is merely one-year graduate school tuition and GRE.
My town has at least two such cases so far...