How does this work?

Short plays are postings and actions that take place outside the storyline; the original idea behind the short play is, that players get the possibility to play scence from the past of their characters (Like: How did Shunsui and Jushiro get to know each other?). The players can play this kind of "Miniplots" in here. They are not part of the actual plot, but can nevertheless be integrated into a characters past.

Besides that, short plays work the same way than normal posts do. You give the topic a title, and can post with other players, until you finished your scene.
There is no place seperation in the short play area.

So, if you want to start playing her, just make up a new thread, entitle it and off you go!