Douluo Dalu Movie: Jiandao Chen Xin

Twenty years before the final Douluo battle, the Spirit Hall had conspired to unify the entire spirit master world and annex all the sects. The Seven Treasures Glazed Tile Sect was the first to be hit and fell into danger. Bone Douluo brought the sect's young master, the five-year-old Ning Rongrong, to ask Sword Douluo to rescue them. So Sword Douluo Chenxin took little Rongrong on a life-and-death escape. However, what they didn't know was that behind this road was a huge conspiracy that would affect Douluo Continent...

(Source: Tencent, Google translated)