Luke once noticed on the windowsill Oika - a monster from the planet Tanehai, who came to visit the planet Earth. The boy immediately became friends with him, but it is not easy to be friends with Oyk: he is uneducated and does not get into trouble. It's time to get down to business and teach the little monster various useful skills: how to behave at home and on the street, greet and apologize when something is wrong; how to brush your teeth and play sports; how to eat and what food to choose ... Listening to this book - a guide to etiquette, children will remember the rules of conduct, become neater and more obedient, and immerse themselves in incredible fun adventures.