>>280333163
Anon, that is a tag that indicates that there's a shoujo (young girl) as a main protagonist
If you click it it will show you other series tagged like it, like Mahōka Kōkō no Rettōsei, because Miyuki is a major protagonist with her brother, unless you want to argue that Mahōka Kōkō no Rettōsei is targeted towards young girls.
Hell, the very next tag アニメ化・実写化 is "with an anime adaptation"; is that also a genre, anon-kun?