The little naughty Nicholas had a happy childhood. He played with his classmates in class and annoyed the teacher, acted coquettishly and quarreled with his parents and talked nonsense. Every day of his naughty and mischievous behavior troubled the minds of adults! One day, Nicholas miraculously jumped out of the drawing paper and met the painter Sambé and the writer Gosini who gave him "life". The three became good friends and talked about everything. However, seeing his two friends often looking sad because of their creations, Nicholas never understood why adults always have so many constraints and worries in their hearts.