Bianca Wright-Halliwell/Season 2

Reacquainted With Chris
Bianca makes her first appearance in Season 2 seemingly knowing Chris before and is assigned by Siobhan to get close to him. Siobhan suggest she act like an innocent and hires some ghouls to mess around with some mortals so that Chris can save her.

Problems With Prue
Ever since Bianca came into the picture with Chris, Prue sense something wrong with Bianca and began to distrust her and also try to figure who she is. She asked help from Junior to figure out her history, and only found information about her mother, Lynn Wright. So Prue decided to resort to magical spells which teleported both her and Junior in an alternative reality where Wyatt is evil, and it is there, it is revealed that Bianca is  a Phoenix Wright. After Prue learns the truth, she tells Chris but he refuses to believe her.

The Mahlon Demon
Siobhan decides to send out The Mahlon Demon to mess with the Destined Ones. Bianca then learns about it and after realizing, that Charlotte got sick too, decides to visit Chris in the hospital in which she stumbles into Prue, whom she reveals that she knows the truth about her and who she is.

The Betrayal /Falling In Love With Chris
Over time, after getting close with Chris, Bianca begins to fall for him and wants to go against her mission. And also wishes to tell him the truth. Unfortunately, Chris finds out and is upset about it and scolds her it for lying all this time to him. She is saddened by this after Chris just leaves the apartment after the reveal. Later on, Bianca decides to find Chris just to talk to him, but is faced with angered Prue, who tells her  to leave. They get into an altercation in which Piper intervenes, and asks Bianca to leave.

Chris' Worries About Bianca
After Chris asks Bianca to take down the Phoenix Witch Coven and infiltrate them, he begins to worry about her about not hearing for a while. It turns Siobhan had captured her, stripping her of her powers for the betrayal against her own coven.

The Head Cupid Wishes
It turns out Chris and Bianca are meant to be and the Head Cupid tasks Prue to be their cupid. Prue decides to head to the Phoenix Witches Headquarters and rescue Bianca, along with some help.