Season 1 (2025)

Episode 1
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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.

Episode 2
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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.

Episode 3
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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.

Episode 4
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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.

Episode 5
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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.

Episode 6
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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.

Episode 7
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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.

Episode 8
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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.

Episode 9
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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.

Episode 10
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March 18, 2025 • 20m

Episode 10 of Season 1 premiered on March 18, 2025