I, A Magical Girl, Swapped Bodies With the Villainess

Magical girl Su Mengdie suffers an unexpected accident during a battle with the villain cadre Canary. When she wakes up again, she discovers that she has gone from being a maid in the Jin Zhi household to suddenly becoming a young lady of high status.
Not only that—while searching for a way to switch back, she accidentally uncovers the truth: the young lady is actually the villain cadre Canary herself.
“Ah, Xiao Die, I never expected that my—”