The characters that appear in the first part of "The Tale of Genji" are clearly divided between those who belong to the Murasaki no Ue series and those who belong to the Tamakazura series, while the characters in the Murasaki no Ue series appear in both the chapters of the Murasaki no Ue series and Tamakazura series; however, characters in the Tamakazura series appear only in the chapters of the Tamakazura series.
源氏物語第一部の登場人物は紫上系の登場人物と玉鬘系の登場人物に明確に分けることが出来、紫上系の登場人物は紫上系・玉鬘系のどちらの巻にも登場するのに対して玉鬘系の登場人物は玉鬘系の巻にしか登場しない。