Colorful fish living in the aquarium wants to discover new worlds. The Purple-Eyed Octopus, who has all the order in the aquarium, does not allow this. Colorful jumps out of the aquarium and tries to find out what is going on and meets Deniz, the child of the house in which the aquarium is located. Colorful learns many things about the outside world from Deniz, and when he starts to tell them to the aquarium creatures, he starts a conflict with the Purple-Eyed Octopus. Will Colorful realize his dreams and discover new worlds despite everything?