“Secrets of the Silent Witch” Episode 4, titled “The Perfect Formula,” premiered on Friday, July 25, 2025, revealing a significant disturbance within the Serendia Academy’s student council. The episode focuses on Monica’s continued mission to protect Prince Felix and uncovers a deeper magical conspiracy at play.
Episode Synopsis: A Magical Anomaly at Serendia Academy
The fourth episode begins with Rynzbelfeid, a familiar sent by Louis, arriving at Monica’s room with a message. While there, Ryn notices a disruption in the flow of magic emanating from the boys’ dormitory at Serendia Academy. Following the anomaly into the forest behind the dorm, Monica and Nero discover Cyril in immense pain, his ice magic spiraling out of control and freezing everything around him, including himself.
Monica quickly identifies the cause of Cyril’s magical rampage: his amulet, a gift from his adoptive father, is malfunctioning, but she also suspects that someone deliberately caused it. She realizes that the out-of-control magic isn’t an accident but a result of a mind-altering formula designed to destabilize Cyril’s mana flow.
Monica’s Intervention and Unveiling the Culprit
Utilizing her unique voiceless magic, Monica confronts Cyril’s uncontrolled power. Despite Cyril’s attempts to fight back, Monica’s powerful fire magic easily melts the ice, and she repairs his amulet. Her analytical genius allows her to puzzle through the corrupted spell and create a mathematical counter-formula to disrupt the manipulation.
Monica’s suspicions about external manipulation deepen following this incident and the previous episode’s events involving Selma. All signs point to an internal operator within the student council with authority, access, and motive. This leads her to Professor Thornlee, whom she catches red-handed attempting to alter student council documents. Thornlee tries to use mind manipulation on Monica, but he quickly realizes she is far more powerful than he anticipated. Monica’s magic disintegrates his, and she incapacitates him with her own mind spell, effectively forcing him to confess.
The following day, news spreads throughout the school that Louis has arrested Professor Thornlee. While a water spirit, Wildianu, informs Felix about Cyril’s situation, Felix remains unaware of Monica’s direct involvement in resolving the crisis.
Character Dynamics and Development
The episode highlights Monica’s growing influence and how she is perceived by others. While ordinary individuals like Isabelle view the Silent Witch as a heroic figure of myth, mages within the magical community regard her with terror, especially when they witness her non-chanting magic. Louis, the Barrier Mage and one of the Seven Sages, acknowledges Monica’s superior magical abilities, despite his pride.
The narrative also delves into Cyril’s backstory, revealing a childhood defined by his desire for his biological mother’s love. His efforts to become a perfect noble, mirroring an idealized version of his father, paradoxically alienated his mother, who had been abused by her husband. This tragic cycle shows how Cyril’s actions, intended to gain approval, inadvertently pushed his mother further away.
Streaming and Production Details
Secrets of the Silent Witch is animated by Studio Gokumi, based on the light novel series by Matsuri Isora and illustrated by Nanna Fujimi. Takaomi Kanasaki serves as chief director and series composer, with Yasuo Iwamoto directing. The script and storyboard for Episode 4 were handled by Takaomi Tanasaki and Tomoe Makino, respectively.
Fans globally can stream Secrets of the Silent Witch on Crunchyroll, with new episodes premiering with English subtitles and same-day English dubs. The series is also available on Aniplus Asia and Bilibili. The season is expected to have 13 episodes in total.
