Once upon a time, in a magical cubic world, there lived all kinds of cubes. They were red, green, yellow, and every color you can imagine. They all had straight edges and flat faces, but they each had their own unique personalities. One sunny day, a small, cheerful sphere named Kulička appeared in this cubic world. Kulička had a vibrant yellow color and a smile that could brighten up even the dullest corners of the world. Kulička was curious and wanted to make new friends, so she started rolling around, exploring every nook and cranny.

As Kulička was rolling along, she spotted a small, blue cube named Kubík. Kubík had a kind face and a little twinkle in his eye. Kulička approached Kubík with excitement, and they started talking and playing together. Kulička showed Kubík how to roll and bounce off walls, while Kubík taught Kulička how to stack and build towers of cubes. The more Kulička and Kubík spent time together, the more they realized how different they were and how much they could learn from each other. Kulička loved the way Kubík could build towering structures with the cubes, and Kubík was amazed by Kulička's ability to roll and bounce so gracefully.

They laughed, they played, and they discovered new things about their worlds, each becoming experts in their own special skills. Kulička learned to stack cubes on top of each other to create structures, while Kubík practiced rolling and bouncing, following Kulička's joyful lead. Soon, their friendship grew stronger and stronger, and they became inseparable friends. Together, Kulička and Kubík brought joy and harmony to the cubic world. They taught other cubes and spheres how to appreciate and embrace their differences, and the world blossomed with friendship and happiness.

In this world full of joy and friendship, cubes and spheres started to live together in harmony. They played games, built magnificent structures, and created beautiful works of art, using both their stacking and rolling abilities. And so, Kulička and Kubík lived happily ever after, surrounded by their friends, in a world where cubes and spheres brought love, laughter, and unity. The end.