Erza is a very strict person, often criticizing the bad behavior and habits of the other guild members, causing most them to apologize for fear that they might invoke her wrath. This, coupled with her own tragic childhood, caused many of her guildmates to avoid her due to her social akwardness.
She is also impatient, disliking people who don't answer her 質問 quickly as seen when she promptly knocks out anyone who doesn't answer her 質問 right away (despite them not knowing anything). Also, Erza has a problem where she apparently sees everyone as guild members (best seen when she asks civilians to take things into places during a mission).
However, she has a great sense of justice and pride in being a member of Fairy Tail. Despite being a very strict person, she seems to have a clumsy side to her as seen during the Galuna arc when she fell into a pit hole. Even then, she'll carry on as if nothing happened as well.
Natsu describes her as "strong, mean and scary", Lucy says that she's "cool and beautiful", and later at the near-end of the ニルヴァーナ incident, Lucy narrated her as "warm and full of passion". Jellal, as he ロスト his memories, remembering nothing but the name "Erza", says her name is "full of kindness, brightness and warmth". Her personality has developed well throughout the series, 表示中 different sides of her during the process, both in her strongest and weakest moments. These developments give her a strong, cool and dependable image, as well as an air of maturity, despite being only 19 years old. Although normally stern in nature, Erza has shown an adorably goofy side of herself from time to time.
It haven't yet fully explored but it was implied that Natsu, Erza and Gray very close with each other; while staying at Lucy's house Erza stated that they used to take showers together. Later, it was revealed that the three of them were part of Fairy Tail since they were children.
During the S-class trial, Makarov called Erza the Female Knight who doesn't know how to hold back. Meaning, she is somewhat like Gildarts, though she may simply choose not to hold back while Gildarts clearly proves he can't. This could be the main reason she has beaten some of the guild members to near death, attacks all of her opponents on a mission, and uses weapons または armor that gives her a clear edge in battle.
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