524 chapters (Ongoing)
He became stronger, faster than anyone else… but he lost. In the end, there was only despair for Kim YuWon.
In his last moments, he was given another chance… Through the sacrifice of his comrade, his fate had not been sealed yet.
Returning back to the past, he attempts to climb the Tower again with his unmatched talent.
To fight the ancient evils that threatens to destroy the Tower.