Jeon Jungkook, a joyful and deeply in love university student studying Computer Science at one of South Korea's most esteemed institutions. Little does he know that his blissful existence is about to unravel when his beloved sister, Suha, becomes ensnared in the treacherous world of gambling. Desperate to escape her mounting debts, his sister, Suha makes a dangerous pact with Vante, a notorious and heartless yakuza boss. Trapped in a relentless downward spiral, Suha's actions set off a chain of events that will test Jungkook's strength and resilience like never before. Tortured and broken, his once vibrant soul is shattered into a million pieces. Fueled by an unwavering determination to seek justice for himself, Jungkook begins a slow ascent through the ranks of the yakuza, fueled by a secret plan to dismantle the very organization that tore his life apart. As Jungkook rises in the hierarchy, he finds himself drawn deeper into a corrupt world of power, wealth, and debauchery. The lines between right and wrong blur as he grapples with the temptations that surround him. Trapped within the depths of this twisted underworld, Jungkook risks losing himself to the alluring trappings of corruption, sex, and money. Loyalties shift, alliances crumble, and Jungkook must decide where his true allegiance lies.