"Obsession isn't love; it's a cage wrapped in silk, enticing yet suffocating." "In a world painted with shadows, where desire meets despair, the lines between love and obsession blur." "Love is a double-edged sword; it can save you or destroy you, depending on who wields it." "She thought she knew the man behind the mask, but beneath the charm lurked a darkness she couldn't begin to fathom." "She was the light I craved, but in the shadows, I became the monster that haunted her dreams." But what secrets lie hidden in the shadows? What cataclysmic event unraveled her existence, flipping Yn's world upside down? Can a love so dark and twisted find redemption, or is Taehyung's obsession a spiral leading to ruin? Can Taehyung reclaim Yn's heart, or will he lose her forever? And what sinister plans does Guinevere weave in the dark corners of their lives-will karma finally rise to settle the score, or will it remain a distant whisper? This is not a tale of typical romance; this is an exploration of the depths of desire, the thrill of the chase, and the pain of losing oneself. Welcome to a story where every heartbeat echoes with danger, and every choice leads you deeper into the abyss. If you dare to enter, remember: the darkness holds secrets that could consume you whole. Proceed with caution; your heart may never be the same. Note: "This story, 'His Lethal Love (21+) [Kth ff]', is a revised version of my original work, 'Ex Husband's Obsession (21+) [Kth ff]', previously published under my account '@lilith_fanfic_3012' (Ana's_paradise). I, the author, retain all rights to this work.