When a hideous woman who has been nearly hiding herself from everyone, possibly everyone and considers herself an insignificant person finds the handsome bachelor nearly in a miserable state and tries to heal him with the child of his ex-lover who is eager to take revenge on her for what she did five years ago. The guy end-up obsessed with her after they both committed a sin together. Now he is obsessed with her which he calls 'Sinful Obsession' as he can burn the world for her. Book 2 in the 'Obsession' series Low-key 'Enemies with benefits' and 'Enemies to lovers' trope. Genre: Dark-contemporary romance, mystery-thriller. Trigger Warnings: Mentions of suicide, rapes and child abuse, self-harm, eating disorder, gore, depression, anxiety, smut. Started:04/07/2023 Ended:________ Word count: 3500-5000 words per chapter. Highest ranking #19 in fanfiction out of 1.45 million stories! Note: This is the second book of the "Obsession" series and the first book named 'Insanely Obsessed". This is a stand-alone book but reading 'Insanely Obsessed' is a must if you want to know Taehyung's story.