Multiple Styles
 
A character must start knowing just one style. However, he can learn 
another with somebody. The new style costs like a special Background 
(10 experience points per level). Each xp in an intensive trainning 
week, so a style completely learnt in 50 weeks (12 months).
A character can buy maneuvers from his incomplete style, but the cost 
of the maneuver for that style can't be higher than the Background 
level.

My home page: www.shotokanrpg.hpg.com.br (in Portuguese)

Translated for English by Roberto (roberto-maluco@bol.com.br)