Synopsis
Lum, Ran, Benten, and Oyuki find out that their old teacher, a giant, robot chalkboard eraser named CAO-2, has come to Earth after being trapped on a deserted planet for years. And the former three are not pleased with the news.
Lum, Ran, Benten, and Oyuki find out that their old teacher, a giant, robot chalkboard eraser named CAO-2, has come to Earth after being trapped on a deserted planet for years. And the former three are not pleased with the news.