You can now use all members of the Akatsuki.

You've acquired S Rank in "Earth Shatter".

You've acquired S Rank in "Battle Between the Sage God".

You've cleared Chapter Five.

You can now use Sasuke, Suigetsu, Karin and Jugo.

You've acquired S Rank in "Sturm und Drang".

You've acquired S Rank in "Forbidden Fury".

You can now use members of Naruto's generation.

You've acquired S Rank in "Sakura Dances".

You've acquired S Rank in "Sand and Art Blast".

You've acquired S Rank in "The Bell-Stealing Drill".

Acquire 1000 experience points

Complete your first Fan Run