Only I Know About "Leveling Up" in This WorldNewこの世界で俺だけが【レベルアップ】を知っている • Kono Sekai de Ore Dake ga Level Up wo Shitteiru • Only I Know About "Level Up" in This World • Thế Giới Chỉ Mình Tôi Level Up

–A world where the worth of one’s life is decided by one’s Level. Theo, an S-Rank adventurer, had reincarnated thousand years later in a future where the people had forgotten about the power called “Level Up”. In this world where a person would be Level at birth, humanity is persecuted as the weakest race and the people lived everyday while fearing the danger of monsters. However, in their midst only Theo, who was chosen to be a sacrifice for the monsters, knew that humans can become the strongest because only they have the ability to Level Up.