Shojo is one of the most popular anime demographics – it's geared toward a young female audience. Whether the story is a fantasy or a contemporary, or somewhere in between like Sailor Moon, there's a strong focus on relationships, especially romance. Self-development is also a central theme – the protagonist finds their place in the world, navigating friendships and new romances.
Source:https://www.cbr.com/sailor-moon-shojo-cliches/