you are my present

The academy, decades ago,

"Ugh! Ugh! Ugh!" Katherina would let out a sharp groan each time Kate Banks stab her with a sharp sword and pull it out, her purpose is to keep record of exactly how many seconds it takes for Katherina to heal. After scribbling a few things down on her record book, she look up with a solemn expression,

"None of our weapons can harm you, even if it does, you still heal! If you heal from every wound, that makes you immortal!"

"Immortal? Like a vampire?" Katherina inquired as she break free of the straps keeping her hands tied to the torture chair. Kate watches her,

"You are getting stronger, but you are no vampire!"

"What exactly am i then?" Katherina growled as she stand, "I let you stab me, feed me poison, even throw me off the roof all for your stupid experiment. I am no lab rat! I am only letting you live so you can change me back, make me normal again!" She starts losing her cool, Kate sensed it and abruptly intervened,