Card Shapeshifter

In the 21st century, modern cities and warcraft coexist and fight. The attack by the monsters turned the originally beautiful city into ruins. The heroine Jiang Ran was once a genius shadow fighter at Imperial College. She suddenly dropped out of Imperial College five years ago, becoming the first student in history to drop out of Imperial College. Today, 5 years later, where should she go? When a monster attacks, should she protect herself and her family?