The Junior Martial Sister Has a Spatial System

She thought she would leisurely live this life by eating, drinking, cultivating medicinal herbs, and playing with venomous insects... leading a carefree existence. However, her master expelled her from the mountain. Her eldest martial brother is the prince of another country, her second martial brother is the leader of the martial arts alliance, her third martial brother is a divine physician, and her fourth martial brother... well, let's ignore him. The emperor is her father, her brother is the prince, the national commander-in-chief is her maternal grandfather, and she has three uncles. She thought she could comfortably lead an idle life, but who knew...