Grazela is the wife of Maurizio Martini and sister-in-law of the couple Viscount Vittorio Martini and Viscountess Patrizia Martini. She is also the aunt of the siblings Alfredo and Bianca. Grazela and her husband extremely envy Viscount Vittorio Martini. They coveted all the treasures of the viscount, especially the Martini medal. Their deep enviousness led them to burn the Martini mansion in Piedmont, killing Viscount Vittorio and his wife. During this time, Alfredo and Bianca managed to escape from their burning mansion with the Martini medal. Maurizio and Grazela hunted the siblings for the medal. They even put on Alfredo and Bianca's heads the blame for the tragedy in the Martini mansion.

After Alfredo sold himself to work in Milan, Grazela and Maurizio captured Bianca. Knowing that Alfredo was in Milan and that the Martini medal was with him, they took Bianca hostage to forcefully get the medal from him. Romeo and the majority of the Black Brothers then saved Bianca from the evil couple. Bianca was later reunited with her big brother Alfredo. Grazela and Maurizio failed to get the Martini medal from Alfredo, but they still did not give up on their evil deeds.

Before the evil couple went to a banquet attended by the King of Italy, Grazela's husband Maurizio hired a man to create a copy of the Martini medal. The fake medal was finished and the evil couple brought it with them to the banquet, hoping they would not get caught as impostors. The siblings Alfredo and Bianca also managed to go to the banquet with the help of the Black Brothers, Wolf Pack, and Countess Isabella Montovani. Accompanied by Countess Montovani, the siblings met with the King of Italy and faced off with their evil relatives. While they were all in front of the king, Alfredo told the king that the Martini medal which was brought by Grazela and Maurizio is a fake and that the one that he holds is the real one. To know who is the liar, the King of Italy examined the two Martini medals. Later, the king found out that the evil couple's medal is really fake and that the medal from Alfredo is the real one because of the "mark of benediction" in its back. The evil couple were caught as impostors and were thrown out of the banquet. In the end, Grazela and Maurizio did not get all that they wanted. Alfredo and Bianca successfully cleared their tarnished names and reclaimed their inheritance.