Sakuya Kumashiro is a girl Tenchi meets shortly after moving to Tokyo. She is a normal high school student who attends the same school as Tenchi. Circumstances beyond her control often put her and Tenchi in strange situations. As the only relatively normal girl in Tenchi's life, he soon falls for her, pulling her into the crazy life of the Tenchi girls.
Sakuya is actually Yugi's shadow, although she does not know it. Her purpose on Earth was to distract Tenchi and break up the girls surrounding him. She doesn't remember the time before she met Tenchi, because she was created not long before that.
