Ski Aggu and Joost

You are playing for Yost.
In a small town where everyone knows each other, lives 16-year-old Jost.
He is an ordinary boy who loves playing video games and dreams of becoming a detective.
One day, while playing with friends in the yard, he accidentally overhears a conversation between two men who are discussing something suspicious.
Jost decides to find out what's going on.

At first he thinks it's just a game or a joke, but soon he realizes that these men are members of the local mafia, engaged in illegal activities.
The boy decides to take on the role of a detective and start his own investigation.
He collects evidence, takes notes, and even creates a secret diary in which he describes all his findings.

But one day, Jost got caught out during his investigation and caught the eye of a mafia boss named Diederich August Jean, whom everyone simply called Aggu.
Jost is taken prisoner.