Follows Anzu Murata, who thirteen years after the home of the wealthy Mitarai family was burned in an fire, infiltrates the house of the Mitarais as a housekeeper in order to reclaim the house and family that was taken from her.
Genre: Drama, Mystery, Thriller
Cast:Mei Nagano , Asuka Kudô , Taishi Nakagawa , Yuri Tsunematsu , Lorna Duyn , Ren Hanami , Elyse Dinh , Kie Kitano , Mitsuhiro Oikawa , Araceli Prasarttongosoth , Tamaki Shiratori , Tsubasa Nakagawa , Kotoka Maki , Ruito Yamashiro , Michiko Kichise , Kyôka Suzuki , Mari Hamada , Yuuki Luna
The house burns down, the family splits and years later Mei gets a job as a housekeeper in order to extract vengeance. Mei is forbidden from leaving the first floor.
Mei begs for job back after being fired for going upstairs. Mei wants proof of who started the fire. Someone discovers who Mei really is.
Mei is caught by someone. He uses threats to reveal the secret of Mei's identity to control Mei. Her controller offers to reveal the full truth about the fire.
Is Mei ready for the truth? Mei tries to get the oldest son outside the house. Mei's boss starts to suspect her. Mei is followed.
Mei finds her mother's old blog. Mei confronts her father and the culprit is not Mei's mother. Mei's father is electronically bugged.
Mei drives her boss around but her true identity remains hidden. An old blog is republished identifying the author as M. Who is M is going viral. A family confrontation ensues.
Mei's father is getting a divorce. Mei's mother is owed an apology. Mei's father decides to support her stepmother disappointing Mei. Someone attacks the stepmother, exposing everything. The someone is revealed.
The reclusive left home. The full truth is revealed. A full confession follows.