Vongola Trial

Vongola Trial is a trial that every Vongola Boss must pass in order to gain a great power. The bossess need to be in near death experince in order to take the trial.
The trial makes the Current Boss experience all the sins that the Vongola have commited through out the years, and depending on how they do, the Vongola Primo decides whether or not they are worthy of the new power.