When Yeonwoo’s brother vanished years ago, the silence was deafening. But the discovery of a hidden pocket watch reveals a truth more painful than loss: betrayal. His brother didn’t just die; he was hunted down while climbing the treacherous Tower of the Sun God. Now, Yeonwoo is stepping into the fray to finish what was started. Operating under the call sign Cain, he carries his brother’s legacy and a diary full of secrets that give him a lethal edge over every competitor.

This isn't just an adventure; it is a cold, calculated quest for vengeance. In a world where gods and monsters watch your every move, Yeonwoo must navigate a cutthroat system of levels and floors to hunt down those responsible for his family’s blood. Armed with forbidden knowledge and an unyielding will, he will climb, he will conquer, and he will make his enemies pray for mercy they won't receive. Prepare for a high-stakes fantasy epic where the price of power is written in blood.

Second Life Ranker, Manhwa, Tower Climbing, Action, Fantasy, Revenge, Overpowered, Cain, Webtoon, Ranker