Ten‑year‑old Olina is reborn with memories of her past life, returning from the slums to her wealthy biological family. She remembers clearly that Perri, the adopted daughter doted on by the whole family, resorted to all kinds of schemes and manipulation in her previous life, ultimately bringing about the family’s total ruin.
On her very first day back at the mansion, Olina uses a self‑made miniature camera to gather evidence. She also possesses a special ability: her inner thoughts can be heard by her family members.
Unwilling to lose her privileged life, Perri pulls one vicious trick after another to get rid of Olina — framing her for smashing antiques, swapping her asthma rescue inhaler, and planting stolen heirlooms to frame her. She also schemes against other members of the household.
Forewarned by her mind‑voice ability and her pre‑planned preparations, Olina sees through every plot. She lays out the truth for her family, who gradually see past Perri’s hypocritical mask to her malicious true nature.
With her schemes repeatedly exposed, Perri takes desperate measures, hiring a hitman on the dark web to murder Olina. Olina defends herself with a self‑built taser device and presents a complete chain of evidence. Faced with irrefutable proof, Perri is arrested by the police.
At last, the whole family comes to their senses. Olina is formally acknowledged as the family’s rightful heir.