Chasing Krystal (AGENT SERIES #6)

Krystal Agustin, Neurosurgeon but I'm also a Chemist. It's fine to run and play hide and seek with enemies but not until they find your weakness. My weakness is my siblings. I will do everything just to protect them. I had a boyfriend once but he left me hanging with his new girl. I don't care about him anymore. So yeah, Agent K or Potassium. I love being chased but I won't let them catch me