Because you like Lisbeth Salander in The Girl with the Dragon Tattoo
Daria Morgendorffer is so defensive that she actively works to make people dislike her so that she don't feel bad when they do. See them in Daria.
Duck, girl, and legend: Ahiru's identities confuse even herself at times, and she often wonders which of them is truly her. See them in Princess Tutu.
Matilda Wormwood is so smart, she taught herself how to be psychic. See them in Matilda.
A vain and arrogant womanizer, Roy Mustang has hidden depths. See them in Fullmetal Alchemist.
Taking down villains, standing up to sexism, and pulling off a bright-red lipstick are all in a day's work for Agent Peggy Carter. See them in Marvel Cinematic Universe.
A precocious 11-year-old, Satsuki Kusakabe is not quite as grown up as she pretends to be. See them in My Neighbor Totoro.
A great galactic bounty hunter, Samus Aran is not as good at expressing emotions. See them in Metroid.
An aloof punk rock goddess, Nana Osaki has a surprisingly big heart. See them in Nana.
If there's power in being average, Mikado Ryugamine will find it and use it. See them in Durarara!!.
Garnet is a Crystal Gem who'll protect her friends with her life. See them in Steven Universe.
Tobias "Four" Eaton is only afraid of four things, but you should probably be afraid of him. See them in Divergent.