My Secret, Terrius (2018)

In the shadowy veins of the espionage world exists an enigmatic figure, Kim Bon, known by his codename Terius. Once a revered black ops agent for the National Intelligence Service (NIS), his life is forever changed by a botched operation three years ago that cost him the woman he cherished. The incident sends him into self-imposed seclusion, his existence veiled in the secrecy of his apartment, with only the haunting remnants of his past for company. Across the corridor lives Go Ae Rin, a resilient single mother grappling with the sudden, inexplicable loss of her husband. Their paths cross in a weave of fate and mystery when Go Ae Rin is thrust into a dangerous spy war following her husband's death. A spectral vane of intrigue spins around her, and she finds herself entangled in a vast conspiracy her husband had unknowingly become a part of. Terius steps out of his isolation to aid Go Ae Rin, their lives intertwining in a quest for truth and justice. As they navigate the treacherous underworld, their unlikely alliance is bolstered by Jin Young Tae, a former con man who potentially holds the key to the secrets they seek. Alongside them is Yoo Ji Yeon, a fellow NIS agent whose icy exterior belies a dormant affection for Terius. "My Secret, Terrius" is a riveting tale of clandestine missions, lost love, and the human spirit's relentless pursuit of the truth. As Terius and Go Ae Rin venture deeper into the labyrinth of deception, they must face their own demons while unearthing the secrets that bind them.

My Secret, Terrius is an action show featuring Son Ho-jun and created by Kang Dae-sun.

My Secret, Terrius is currently streaming on Kocowa.