Each author has the right to place hashtags the way they want, but in order to standardize and facilitate searches, we decided to put the category first (Naruto, Dragon Ball, BTS, Supernatural, Harry Potter, for example) and then the characters. We use “bar” to indicate a romantic relationship (Shikamaru / Temari, for example) and “&” to indicate another type of relationship (Sasuke & Sarada, for example, since their relationship is familiar). This prevents people who are looking for friendship fanfics between John Watson and Sherlock Holmes, for example, from ending up in the wrong stories. Thus, John Watson / Sherlock Holmes (alphabetical order to avoid problems) would be in romantic relationships and John Watson & Sherlock Holmes in stories where they are just friends.