This page highlights the differences between Souji Rippukan and Riley Griffin.
|Souji debuted in the first episode.
||Riley debuted in the second episode, but was credited in the first episode.
|Was trained in kendo by his father.
||Taught himself fencing techniques in secret.
|Was a loner.
||Was intellectual and serious.
|His mother left home when he was a child. He chose to stay with his father.
||His father hasn't been seen; he lives with his mother, brother, and pet dog.
|His great grandson would later on become KyoryuGrey for a short time.