Hananomoto-renga permitted unannounced participation, and among renju (participants of renga), high noble people, such as Sosen hoshi (Tonyudo, his common name was Taneyuki CHIBA), who was a close associate of MINAMOTO no Sanetomo and was talented at waka, and even Emperor Daijo (Dajo) joined secretly.
花の下連歌には、飛び込みの参加も可能で、連衆のなかに、高貴な身の人、例えば源実朝の側近で、和歌の名手あった素暹法師（東入道、俗名千葉胤行）やさらには太上天皇がお忍びでまぎれることもあった。