Five years after his twin brother Jeong-woo Cha vanished without a trace, Yeon-woo Cha receives his sibling's pocket watch alongside news of his death. Opening the mechanical heirloom triggers an encrypted memory log revealing the horrifying truth: Jeong-woo had climbed the Obelisk, the Tower of the Sun God where alternate dimensions, mythical entities, and ascension trials converge. Leading the legendary clan Arthia under the moniker Heaven Wing, Jeong-woo was systematically betrayed, poisoned, and slaughtered by his closest allies, including leaders of the major clans Cheonghwado and Red Dragon.

Driven by cold retribution, Yeon-woo abandons his earthly military life and enters the Obelisk under the alias Cain. Concealing his identity behind an iron mask, he uses Jeong-woo's extensive recorded diary as an infallible tactical walkthrough. While ordinary challengers struggle through lethal trial rooms, Yeon-woo claims every hidden piece, secret score, and divine blessing available across each floor. By assimilating the Draconic Factor left behind by his brother's dragon egg, Yeon-woo builds an impenetrable foundation, awakening draconic traits and attracting the gaze of ancient, primordial deities.

As Cain rises through the rankings, his private vendetta triggers sweeping geopolitical shifts across the Obelisk. From the brutal survival crucible of Section A to full-scale territorial warfare against rival syndicates and divine pantheons, Yeon-woo methodically tracks down every traitor who contributed to his brother's demise. The hunt escalates into a catastrophic struggle against cosmic powers, demanding absolute ruthlessness, tactical dominance, and mastery over death itself.

What to Expect

The narrative delivers an uncompromising, calculated progression system driven by tactical planning rather than impulsive brawling. Readers can anticipate rigorous dungeon exploration, hidden floor challenges, and deep item synthesis. Combat relies heavily on spatial awareness, draconic physiology, weapon mastery via Vigrid, and necromantic control over conquered souls. Pacing remains tight, prioritizing systematic territorial conquest, ruthless guild politics, and high-stakes clan warfare across iconic arcs such as the Tutorial, the Five Mountain of Penance, and the Dragon God raid.

Who Will Enjoy This

This webtoon is tailored for readers who appreciate cold, pragmatic anti-heroes, intricate power systems, and methodical revenge sagas. If you prefer protagonists who outthink opposing clans through comprehensive intelligence gathering and brutal execution, this title delivers constant narrative satisfaction.