So what is wore than gary stu/Mary sue oc? gary/Mary sue official characters  

 
Yaiba is a tranny (because never explained Knights can only be males)  
his name is akira, He was a street kid, and worked at a circus when he was young. One night the entire circus got wiped out by horrors, and Akira was the only survivor. Barago (villain of the first season) showed up from nowhere and fed on the horrors.  
Akira followed Barago and wanted to train under him, but Barago refused. Then one night Akira got a high fever and his body changed (into a female apparently). Barago told him to give up his dream of being a knight because of the female thing.  
Akira got better afterwards and changed back to guy. He left Barago, went of training by himself, and finally got his own set of armor. He is also able to control his transformation ability.
 
Can a gary/mary be any worse?