Wei Xiao, a primary school student, saved two "animals" due to an accident.
A three-legged mechanical dog who always thinks he's an alien.
A little octopus that is an alien disguised as a doll.
Wei Xiao reached a deal with them. Wei Xiao takes them in, and they need to find green seeds for Wei Xiao.
Will they succeed?
Motto: Friendship can conquer everything
