"My Secret Terrius" is a South Korean drama series that follows the story of Go Ae-rin, a young mother who sets out to uncover the truth behind her husband's suspicious death. Along with her neighbor Kim Bon, a former NIS agent, they form an unlikely alliance to expose a massive conspiracy that threatens their lives. With Kim Bon's expertise and Go Ae-rin's determination, they embark on a dangerous journey to bring the truth to light, navigating through a web of deceit and danger. As they dig deeper, they uncover unexpected secrets and revelations that put their families in jeopardy. Will they be able to solve the mystery and bring justice to their loved ones?

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Some TV shows that have similar genres and were produced around the same time as My Secret, Terrius include Dead Boy Detectives, Avatar: The Last Airbender, Extreme Ghostbusters, Gleipnir, The Owl House, Eken Babu.