The Book of Complaints and Suggestions

Yulia is a worker in a cafe. She watches how an ordinary visitor sits at the table, but this time he is upset. Children run to the cafe, go to the main character, she gives them candy for good entries in the diary. After a while, a mysterious visitor appears and gives her the "Book of Complaints and Suggestions" and says that what she writes there will come true. She accepts the gift with disbelief.