Worstgen
God Buggy
Also, when Mougou talked with Renpa, he called Riboku "pratically nameless" (at the time of Ouki's death).
Elder Lee Hung
Riboku was a well known general within Zhao prior to him beating the Xiongnu, he was considered one of their prominent generals. Any commander paying close enough attention to Zhao probably would’ve noticed him even prior to him beating the Xiongnu