The Evaluation Guide wrote:

• Unless otherwise specified, all post count requirements apply per person, not in total, and apply to all topics.
  
• The minimum post count requirement for any threads involving more than one person is 3 posts per topic - social topics with two or less posts from the participating members cannot be submitted as preferred topics
  
• If writing a solo topic, you can opt to write a single post that has at least three times the minimum word count requirement.
  

Ultimate Shinobi Rules | Guidelines | Posts wrote:

All role-plays should firstly have a posting order that dedicates who may post when. This order is usually established by the topic creator and should be followed throughout the entire topic unless it is required to be broken. Double posting should not occur in a role-playing thread unless you're in a solo topic by yourself. Out of character (OOC) messages should be kept to a minimum. Private messaging is available for more than one reason and that can be one of them. Finally, the required word count per post is 300 words. This is a bare minimum and we expect you all to strive to surpass with ease. We find it best if you write your role-plays in paragraphs of five to seven or eight sentences as opposed to just a few lines each, we want your posts to look as clean as possible and stretching them out does not achieve that.

Solved.