Though, I have noticed someone added the category earlier here (especially without a proposal first) https://hero.fandom.com/wiki/Alyx_Vance?diff=prev&oldid=1438710 until it was removed.
I'm also making this removal to prevent from happening again.
Who is she?
Alyx Vance is the deuteragonist of Half-Life 2 and its episodic sequels, Half-Life 2: Episode One and Half-Life 2: Episode Two and the main titular playable heroine of the upcoming Virtual Reality game prequel, Half Life: Alyx.
She is the daughter of the Eli Vance(who is one of the supporting characters of the Half-Life series until he died at the very end of Episode Two) and Azian Vance(who died during the Black Mesa incident when Alyx was young), the owner of her pet robot, D0g, and is also the sidekick and best friend of Gordon Freeman.
Why dosen't she qualify?
While Alyx Vance is very kind, optimistic, loyal, selfless, protective and caring for the most part(especially towards her father Eli.) and has helped Gordon Freeman a lot of the time in Half-Life 2, Episode One and Episode Two, there are some things why she doesn't qualify as a pure of heart hero. She often has a bad relationship with Judith Mossman and showed some hostility towards her and even swore at her by saying "Enough of your bullsh*t!" with no remorse. (Though the hostility towards Judith had been vanished when Judith teams up with Gordon, Eli and Alyx, betrays Dr. Breen and frees Alyx and Eli at the near end of Half-Life 2)
And while she is not as lethal as Gordon Freeman, she does willingly kill enemies(including Combine Soldiers) as well.
I love Alyx Vance as a character but, she deserved to be rejected from Pure Good.