Low on fuel, Robby and Hatchi find themselves on Mulberry 8, a world where mechanical people are in charge and living beings are slaves. The two must learn to navigate the feudalistic society and adapt to anti-human discrimination.
"That would never happen! The outrageous
anime RobiHachi" "Heads I'm Tin, Tails You Lose"
♪ Let's go to Isekandar!
Let's go to Isekandar! ♪
Doch nicht im absurden Anime „RobiHachi“!
„Siegeszug der Mechas“
¡ESO JAMÁS SUCEDERÍA!
EN EL EXTRAVANGANTE ANIMÉ ROBIHACHI 
Mais c’est pas le sujet de RobiHachi !
Qui se robotise gagne.
ISSO NUNCA ACONTECERIA!
O CHOCANTE ANIMÊ ROBIHACHI