This is a 3-episode series spin-off of one of the Tenchi Muyo characters; Sasami, in her own show; Magical Girl Pretty Sammy.
Starring:
Sasami Jurai as Sasami Kawai/Pretty Sammy
Tenchi Masaki as Tenchi Kawai - Sasami's older brother
Ryoko Habuki as Ryoko Orikasa - One of two girls in love with Tenchi
Ayeka Jurai as Ayeka Takada - One of two girls in love with Tenchi/Ryoko's rival
Mihoshi and Kiyone as Mihoshi Mizutani and Yuri Kiyone
Washu Habuki/Washu as Washu Kobayashi
last but not least; Ryo-Ohki as Ryo-Ohki, Sasami's advisor/shapeshifter