I saw the anime!!! It's really good!!!! But there were only 5 episodes T.T... I didn't know the manga was so long!!! Do you know where I can find it?
Byes!
The manga has recently been released in english, as far as I know. And bLuetopaz, it's basically about moral issues. When you buy a pet, you're told not to do something...like not to feed it lettuce, for example. Of course, the owners always disobey, and they end up facing the consequences.