After Thirty Years of Hard Training, My Dog ​​Became the King of Martial Arts

From the day he joined the Tianxuan Sect, Li Yun had been practicing hard, rain or shine. But thirty years later, he is still a first-level warrior. Everyone thought he was a loser. Li Yun himself felt the same way. Until one day, foreign enemies invaded, Tianxuan Sect's protective formation was broken, and the sect leader was seriously injured. The sect's destruction is at stake. The dog raised by Li Yun barked...