When the cold-blooded and ruthless world's number one killer, armed with full-level skills and a black technology system, is reborn as the lost daughter of a wealthy family. She originally wanted to experience the ordinary, but the demons and demons kept provoking her. Therefore, the Queen of Technology returns with the power of thunder, creating a business empire with her left hand and guarding a warm family with her right hand. This is not only a road to victory that crushes the entire audience, but also a warm journey in which a cold killer is healed by love.
