Credit: LaFa Androssi was invited to Kaiser's place. She fought him/her and lost her real name (not the Zahard name since that one cannot be taken). The two princess are from the Lo Po Bia family (The strongest among D rank's top 3). They asked Androssi to play a game (if Androssi takes Kaiser's name, the Lo Po Bia family will no longer interfere in the matters regarding Anak and that they'll give up Ren's life). Basically, asking someone to steal Kaiser's name is a way of getting rid of them. Kaiser seems to be someone who was placed here for a reason.