Sayuri, your site will not be blocked or deleted from the form of content you have described however the uCoz Abuse team may if deemed necessary place an 18+ notice before access to the site is granted.
Due to this we are advising you to have a 18+ notice - somewhere on your site so that users are aware some of the stories may contain this form of content- so that there is no necessity for Abuse to do so.
Jack of all trades in development, design, strategy.
Working as a Support Engineer.
Been here for 11 years and counting.