Defrosting Her Cold Heart

Raised by wolves, trained by bandits, forged in violence, she was a cold-hearted warrior, but forced to conceal her true gender to survive in the city of Los Angeles. Confined in an orphanage, she became entangled with Lucas Blackwood. Casey Angeles eventually found herself selected to be trained at the world's largest military training base (M base), an opportunity that seemed unimaginable given the base's policy of only accepting males.

Lucas Blackwood, the director of the M base and the mysterious eldest son of the Blackwood family, is a legendary figure in both the business and underground worlds. But despite being a paragon, he has a secret illness that hinders him from getting close to a woman, so he has the greatest shock of his life when he encounters and discovers Casey's gender, yet His illness doesn't break out.

What will happen when they both get entangled with each other and Lucas finds himself getting attracted to the disguised Casey? Will Casey's secret be discovered? Will her Cold heart eventually be thawed? Will Lucas forgive her deceit after finding out the secret? How did she not trigger Lucas's illness despite being a female?