Emergency!

Doctor Angela Ziegler performs a life-saving operation on the man brought to her, saving him from an untimely demise. All she knew was his name, Genji, but none of the plans her colleagues had for him. Working against her values,Angela eventually agrees to slowly but surely transform the man whose life she saved into a weapon, but she never sees him as anything but who he truly is. Slow burn enemies to lovers trope.