One thousand deaths to be reborn. More one thousand deaths for disobedience. A man suddenly finds himself in a white room which has no escape, in this room, he is forced to endure many deaths before he has the chance to be reborn as Aizen. Still, even after paying the price to have the chance of being reborn, he will have to survive in a world in a world where people use each other for the political gains of their own families. As if that wasn't enough, Aizen has to conquer the world in twenty years, that is his first true challenge and if he deviates from that, he will have to return to the white room and suffer many more deaths. Fortunately, time doesn't pass in that room. While he spents months suffering there, only a single night passes in the real world and Aizen's real body doesn't suffer any real damage. He has to pay the price to have a second chance at life, this price can also make him stronger, but will it be enough for him to complete the first challenge in just twenty years? What will be waiting for him after that? And what is behind his reincarnation and why he is sent back to that room every time he doesn't work toward that goal? What to expect: - A world where people with treasures can create and level up their own skills, level up themselves and the treasures. -Dungeon diving. - Weak to strong male MC. - Massive worldbuilding with vast empires, dungeons, guilds, and factions. - Kingdom building, eventually.