In fall 400 , believing that he was being suspected by Tufa Lilugu , Qifu Gangui fled from Southern Liang .
In fall 400 , believing that he was being suspected by Tufa Lilugu , Qifu Gangui surrendered to Later Qin .
In fall 400 , believing that he was being suspected by Tufa Lilugu , Qifu Gangui fled from Southern Liang and surrendered to Later Qin .