A comet has landed in Japan, where Tsunami and her family and family happen to be going on vacation. Ramia has gone missing has turned into an amnesiac. Washu analyses a sentient blob of cosmic slime that was found at the comet crash site. Misao is attacked by a sorcerer, who overwhelms Pretty Sammy the next day. Makoto and the sorcerer are revealed to be transformed cosmic slimes. With Ryo-Ohki and Pixy's help, Pretty Sammy defeats the sorcerer, which restores Ramia's memories.
Sasami's always been kind of neat... but now she's been imbibed with a healthy dose of magic (which she plans to use to right the things wrong with the Earth, and, of course, help keep her brother Tenchi out of trouble). Naturally, there's going to be trouble: this time, it's the mysterious Pixy Misa... and Ryoko going at it against Ayeka (as usual) isn't making things any easier for her!
