Douluo's Fairy Fox Sword God

The protagonist is a girl, Tang San's biological sister. After time travel, she didn't know that Tang San also traveled through time. The heroine was originally good in modern times in her previous life, and then traveled to the Tang Clan before Tang San time travel. The protagonist is the Tang Clan's little princess Tang Xueer, the daughter of the Tang Clan leader. Because Tang San secretly learned the martial arts from the inner sect and fell off a cliff, the sect leader ordered the sect to go up and down to find Tang San's body. Because the Tang sect was vast and alone, Tang Xueer was attacked by bad guys and died. She also traveled to Douluo Continent and became a sister who was three minutes older than Tang San.