DIGIMON D-CYBER

Ten thousand years ago, a large and powerful Digimon was defeated and sealed away by the Holy Knights as the "Digi Core". Years later, the virus infected digital world, so that only those with a D-antibody (X-Antibody) remaining. The only member of the Holy Knights remaining Omega Power (Omnimon X), Duke of Courage (MedievalGallantmon / Gallantmon X), and Magna Miracles (Magnamon). At the beginning of the series, "The Lord of Death" interesting MetalPhantomon Hikaru, Kiyoshi, Masuken, and Teru into the digital world. Originally, Hikaru is left alone with his Digimon (which starts as Dorimon), and must battle his friends Teru and Masuken, which is under the control MetalPhantomon's.

At one point, MetalPhantomon steal "Dragon Spirit" from partner Masaru, who is now Dorumon one. While MetalPhantomon use it to revive the Digi-Core, Hikaru, Teru, and Masuken learn from Omega Power that they could get a new Dragon Spirit from Duke of Courage - by this, they can save lives Dorumon's. But when they arrived at the Duke Digital World, they were given a series of tests by the servant of Duke, MameTyramon.

After completing the test and combat Duke himself, they managed to get Dorumon a new Dragon Spirit. However, now they must battle MetalPhantomon, who has resurrected the Digi-Core as Dexmon. In the end, Hikaru and the others managed to save their friend Kiyoshi, who sealed in Dexmon, and return to the real world