Description:In the early years of the Republic of China, the detective Xiao Jian, a boy who dreamed of becoming the top detective in Shanghai, accidentally touched upon what they called a control incident during the investigation of a series of mystery cases, and inexplicably became a member of the Special Investigation BureauA member, who experienced a series of thrilling and mysterious events, took over the codename of 'Breaking the Army' and became an unknown guardian.