Ketsueki_Hasu

Katherine Zara, a single middle aged office worker, went about her day as she always had; wake up, go to work, come home and read or play games. However, today would be different. Before she left for work, her ex broke into her apartment and killed her. 
When she woke up, she was given many choices. She could pick her new world, pick her starting point, and pick her system among many other things. And so Katherine decided to become a servant to a villainess.
Follow Katherine as she serves her petty, demanding mistress in a world of swords and magic.

Additional: The Female Lead (Katherine) will be submissive to her mistress, but will be cold towards others. I plan on having some action, but mainly this will be a story about Katherine serving her mistress and leveling up her system.

My Servant System

As I prepared to run my mana through the extremely magical metacarpal and do a little test, a pink hand landed on my arm and stopped me from doing just that, and considering Cali was smiling at me like I was an idiot, I instantly wrangled back my mana and waited for an explanation.

"Sometimes I have to wonder if common sense has become uncommon with you lot... or is that just the mark of higher intelligence individuals? I don't really know, but what I do know is that running your mana through this bone as raw as you love having sex will only result in the painful time of you reconstructing your own bones."

"And why is that? Does the mana imbued inside this bone react negatively to outside mana, or is there some weird Fiend physiology that I am unaware of at play inside this type of bone in particular?"

Chapter 1105: Fiendish Gear (3)