January 14, 2025 • 20m
Sachiko Tachibana interviews for a babysitting job at the home of famous pianist Rena Hanai, who is somewhat surprised by Sachiko's persistence.
January 21, 2025 • 20m
Sachiko decides to sneak into the room of Rena's father Minoru, a professor of criminal sociology, to search for evidence of Rena's crimes.
January 28, 2025 • 20m
Determined to make Rena suffer, Sachiko sets her sights on baby Kokoro. A covertly recorded conversation between Rena and her manager leaks online.
February 4, 2025 • 20m
After seeing how Rena truly feels about Kokoro, Sachiko rethinks her tactics and soon realises that the key to revenge may lie in Makoto instead.
February 11, 2025 • 20m
Under the pretense of preparing for Rena's surprise party, Sachiko arranges to go shopping with Makoto. However, Rena soon grows suspicious.
February 18, 2025 • 20m
Sachiko learns from Minoru that Makoto's mother was murdered. Later, Makoto feels something familiar when he hears Sachiko playing the piano.
February 25, 2025 • 20m
Rena has a realization as she watched her home surveillance feed. Sachiko begins to feel conflicted after Makoto makes a stunning confession.
March 4, 2025 • 20m
Rena loses her temper and comes at Sachiko with the scissors - but she is interrupted when Makoto returns home and makes a surprising announcement.
March 11, 2025
With both Rena and the evidence missing, Minoru tells Makoto they should go to the police. Meanwhile, Sachiko receives a phone call from Rena.
March 18, 2025 • 20m
Episode 10 of Season 1 premiered on March 18, 2025