Cute? My Junior Sister Slashes Immortal Venerables and Goes on a Killing Spree

Modern-day assassin Yao Yao transmigrates to the cultivation world while carrying out a mission, becoming a tiny baby. Thinking transmigration would give her a golden finger, Yao Yao is full of anticipation. Instead, she discovers that her golden finger is a System brought over by a domineering CEO! It has no useful abilities, but it sure has a lot to say! “Can you give me a little more spirit stone pay this time?” “No. You're an employee. You think you deserve a raise?” The CEO blows up. “I'm a big-shot CEO, forced out of my job, and now I wash your clothes, cook your meals, clean up your storage pouch that's messier than a garbage dump, and even find you jobs. And I still don't deserve a raise?” Yao Yao puts away her sword. “Last time you did my laundry, you rubbed three holes in my clothes. And that spirit fish you cooked last time was pickled in vinegar. You'd have been better off not cooking.” The CEO: “...” Yao Yao has no grand ambitions. She just wants to work hard at cultivation and return to her old world as soon as possible. But then her closest friend betrays her, and her senior sister, who was like both a mentor and a mother to her, is murdered by that friend right before her eyes! To avenge her, Yao Yao doesn't even bother going home. She'll kill her traitorous friend, who is actually an Immortal Venerable in disguise! The CEO: “? Sis, weren't we supposed to be useless together? You got me all the way to ascension!”