一清二楚不遮不挡全过程

I am Ning Ruolan, sister of Ning Xiaocheng, sister Mu Wan. There has been no news about my brother and he has not returned to the dormitory. Do you know where he is? Ning Ruolan was in no mood to say anything else to Tian Muwan and asked about her brother's whereabouts as soon as she opened her mouth....