Shikkaku Mon no Saikyou Kenja~ Sekai Saikyou no Kenja ga Sarani Tsuyoku Naru Tameni Tenseishimashita~ - Chapter 274: Strongest Sage, Speaks with the Perpetrators

One day, Luo Jian woke up from his sleep and found himself in a locked chamber where the door and window were all sealed. A note with a few lines written on it was tacked to the wall: “Escape from this room within an hour, otherwise, you will die.”

There is a sequel called Reincarnation Night (轮回之夜) that takes place in the same universe but has different main characters

- Description from Novelupdates

Enemy of the world, cursed by all, Kim Sungchul goes on a quest to prevent the ‘prophecy of the end’ from coming to pass.

But no matter how much he raised his strength, there were still some things he could not achieve with physical strength alone.

Resolving to obtain the power of magic, he goes into hiding to learn magic from his most hated of enemies, The Mages.

The Tower of Heaven.An ancient, towering enigma said to grant any wish, unveil any secret, and provide anyone who enters its floors a path to Godhood; it stands as a beacon of both hope and despair.For untold centuries, its immense power has drawn countless seekers, yet none have ever emerged from its depths.This Tower is engraved in the world’s myths as the meeting place of mortals and Gods, a realm where anything was possible. It is a monument to mystery and the pursuit of glory.However, for one man, it represents the last chance for redemption and the key to unraveling his tumultuous past.The Heavenly Emperor, a great ruler from an era long forgotten. was betrayed by those he trusted and died with a heart full of regret and a thirst for vengeance.Only, the end of his life was not the end of his story. Reborn into a new world, he finds himself drawn to the Tower of Heaven, driven by the desire to understand his reincarnation and to reclaim his lost honor.The path ahead is filled with unforeseen twists and hidden depths. Unbeknownst to him, his destiny is interwoven with forces and secrets far beyond his wildest dreams.The advent of the former Heavenly Emperor begins here.And with each step he takes, the Heavens themselves quake in anticipation.

Lin Jiang travels through the world of cultivation and obtains the Lifespan Check-in System.Check-in for a day, gain one year of lifespan.This nearly infinite lifespan allows him to live tens of thousands years, bearing witness to numerous lives passing by, their joy, grief, and everything in between.He has persisted from the Stone Age to the Cosmic Age and ranges from cultivation to science. He is there, always there, as the eternal guardian of mankind.(Not a dark and thrilling story, be cautious)