Jutsus are learned via making a number of training posts. The system is rather simplystic, but effective. A player's level of skill effects the number of required posts.

You start off at learning. When you have half of the posts required for a jutsu, you progress to Unmastered. When you have all of the posts done for a jutsu, it is ranked up to mastered. When you post training roleplays for a jutsu, keep tally on the number of posts done so far, and also do so on your profile.

Genin - D Rank
D Rank Jutsus - 2 Post
C Rank Jutsus - 6 Posts
B Rank Jutsus - 10 Posts
A Rank Jutsus - 24 Posts
S Rank Jutsus - Can't Learn

Chuunin - C Rank
D Rank Jutsus - 1 Post
C Rank Jutsus - 4 Posts
B Rank Jutsus - 8 Posts
A Rank Jutsus - 20 Posts
S Rank Jutsus - 40 Posts

Jounin - B Rank
D Rank Jutsus - 1 Post
C Rank Jutsus - 2 Posts
B Rank Jutsus - 6 Posts
A Rank Jutsus - 15 Posts
S Rank Jutsus - 30 Posts

Kage - A Rank
D Rank Jutsus - 1 Post
C Rank Jutsus - 2 Posts
B Rank Jutsus - 4 Posts
A Rank Jutsus - 10 Posts
S Rank Jutsus - 20 Posts

Above Kage - S Rank
D Rank Jutsus - 1 Post
C Rank Jutsus - 2 Posts
B Rank Jutsus - 4 Posts
A Rank Jutsus - 8 Posts
S Rank Jutsus - 16 Posts

Shinobi Classes
Specialist: -2 posts on all jutsu specialty. For example, Genjutsu Specialists get -2 posts on Genjutsu.