Who is Pineapple Vivian's sister

Pineapple Vivian does not have a sister. Pineapple Vivian, a character in the Chinese animation "Fruitball Special Attack" spin-off animated series, the seventh Fruitball Special Attack. Pineapple Xiaowei grew up with both parents dead, no siblings, recognized as a righteous daughter by the world without thieves, specializing in disguise, demolition, assassination, the world's only person who can refine the Jade Lady Sword Technique to the realm of the prison.