Phoenix Against the Sky: the Daily Life of the Supreme Concubine

The heroine Ling Xi appears to be a good-for-nothing concubine of the Ling family, but in fact she has a mysterious bloodline and a shocking secret. Rebirth/time travel, with superior IQ, superb acting skills, ruthless but keeping the bottom line, proficient in medical skills, poison techniques, mechanisms, formations and other skills. It has a growing portable space and a mysterious accompanying magic weapon.