Rosalia

Rosalia is a minor antagonist in the anime adaptation of Sword Art Online, specifically appearing in Episode 4 ("The Black Swordsman") of the first season.

She is the leader of Titan's Hand, an orange guild (a player-killer/criminal group) that specializes in ambushing and robbing other players. To keep her own cursor green (non-criminal) and avoid suspicion, she uses her charm and beauty to lure unsuspecting victims into joining parties or trusting her, before leading them into traps set by her guildmates.

In the story, she targets the young player Silica to steal a valuable item (the Pneuma Flower), but her plan is thwarted by Kirito, who confronts and defeats her and her guild, sending them to prison via the game's mechanics.

Personality-wise, she's portrayed as sly, manipulative, and overconfident, relying on sweet-talking and deception rather than raw strength (though she wields a spear in combat). She's a mid-level player rather than a frontline clearer.