Credible. Xiao Cui said that the trial is the creator of Tik Tok's high-quality education field, which specializes in explaining professional knowledge such as architecture and fire protection, and has 480,000 fans. Xiao Cui said that the trial is a national first-class registered construction engineer and a first-class registered fire engineer, which is highly credible. Tik Tok, a short video social software for music creativity hatched in ByteDance. The software was launched in September, 2065438+2006, and it is a short video community platform suitable for all ages.