Synopsis

Yeonwoo’s brother has been missing for some time, but now he learns that he’s passed away. Although deeply saddened, he receives a pocket watch as a keepsake. To his surprise, he finds out that his brother didn’t just die, he was betrayed during a competition in the Tower of the Sun God. As his brother left behind knowledge, Yeonwoo (known as Cain) takes up this challenge. He’s got to navigate this world, gather enough power and wisdom to climb the tower, eliminating his brother’s enemies and anyone who opposes him along the way. Can Yeonwoo succeed in this journey? (From Tapas)