The 0th Fragment: Reincarnated as a Prince, But Became an Anti-Hero with Abnormal Skills

Rio Kawamura, a 26-year-old man who spent his life as an office worker, tragically dies and is reincarnated into another world as Kurayuki Fujin, crown prince of the Fujin Kingdom. However, his new life doesn't play out like a typical isekai story. In this world, there are two primary sources of power: Mana, an energy used by nearly all living things, and Aether, an ancient power that even the gods don't fully understand. Unbeknownst to anyone, Kurayuki inherited the 0th Fragment, a mysterious shard connected to a legendary being named Zero, the figure said to be the creator of the universe. Since childhood, Kurayuki has shown exceptional talent with various weapons. However, his destiny changes when a great war claims the life of his father, King Fujin. In anger and despair, the power of the Aether within him rages, nearly destroying his own body. The world assumes Crown Prince Fujin has died on the battlefield. In reality, he was rescued by a mysterious warrior named Hanzo Hattori and disappeared for two years. Now, with a new identity as Ken Hattori, Kurayuki enters Fujin Military Academy, hiding his past behind a white mask. There, he must face young nobles, political intrigue, powerful rivals, and people from his past who are slowly beginning to realize who he really is. Meanwhile, in the shadows of the world, the gods are beginning to stir. Because the existence of a young man who holds the 0th Fragment could be the world's savior... Or a disaster that will topple the gods from their thrones. When fate demands he become a hero or a villain, Kurayuki chooses a third path. Becoming an anti-hero who defies fate itself.