Guess Who's Back, Cheater？

Sinopsis

After 20 years apart, Avril eagerly anticipates reuniting with her sister, only to be met with the shocking news of her sister's death. The cause of death is shrouded in mystery—was it suicide or murder? Who is the true culprit behind this tragedy? Determined to uncover the truth, Avril assumes her sister's identity, lurking in the shadows. Step by step, she draws the demon into her trap, gradually revealing a vast conspiracy driven by money, desire, and human nature...