What if you had a cool and powerful secret friend by your side? And what if that secret friend was a transforming car robot?
It all starts with an ordinary toy cube that mischievous first-grade elementary school boy Chatan received from a package. Unexpectedly, when he turns the cube curiously, a car-transforming robot named Carbot appears with the words "HELLO CARBOT!"
Carbot becomes Chatan's secret friend and tells him to call him anytime by turning the cube if he needs help.
Hello Carbot is a special and exciting story about the energetic boy Chatan and his unique secret friends, the Carbots!

(Hello Carbot Season 1 Episode 1 Synopsis)
Chatan, who wishes to ride the "Roller King" at the amusement park, returns home disappointed because he is too short to ride it. However, when he arrives home, a toy cube sent by his grandfather in Antarctica has arrived.
When Chatan turns the cube curiously, a robot car suddenly appears out of nowhere! Its name is "Carbot Ace"?!