Any user can have, create or join a fan club, just follow the rules below.
The user can leave and join any fan club by following the rules below.
On the first page of the "fan club" field the user can see which participates and which is an idol.
On another user's "fan club" page the user can also see which ones he participates and which ones he is idol.
In the description below the title of the fan club has the name of the idol, the number of members, the sum of points of all the participants and the nomenclature of the user.