Digimon D-Cyber

is a Chinese Digimon, which was released by Rightman Publishing Ltd. in Hong Kong, China on 2004. It is based on the adventures of Zhiguāng Lóng, Shēngjiàn Fāng, Huī Luò, and a young girl named Āměi, and introduces the concept of X Digimon, though their origin is different from that in the Japanese Digimon Chronicle.

Synopsis
Ten thousand years ago, a great and powerful Digimon was defeated and sealed away by the Holy Knights as the "Digi Core". Years later, a virus infected the digital world, leaving only those that possessed the D-Antibody (X-Antibody) remaining. The only members of the Holy Knights remaining are Omega of Power (Omnimon X), Duke of Courage (MedievalGallantmon/Gallantmon X), and Magna of Miracles (Magnamon X).

At the start of the series, the "God of Death" MetalPhantomon draws Zhiguāng, Shēngjiàn, Huī and Āměi into the digital world. Originally, Zhiguāng is left alone with his Digimon (which starts out as a Dorimon), and has to battle his friends Shēngjiàn and Huī, who are under MetalPhantomon's control.

At one point, MetalPhantomon steals the "Dragon Spirit" of Zhiguāng's partner, who is now a Dorumon. While MetalPhantomon uses it to revive the Digi-Core, Zhiguāng, Shēngjiàn and Huī learn from Omega of Power that they can get a new Dragon Spirit from Duke of Courage—with this, they can save Dorumon's life. But when they arrive in Duke's area of the Digital World, they are given a series of tests by Duke's servant, MameTyramon.

After completing the tests and battling Duke himself, they manage to earn Dorumon a new Dragon Spirit. However, now they must battle MetalPhantomon, who has resurrected the Digi-Core as Dexmon. In the end, Zhiguāng and the others manage to save their friend Āměi, who was sealed inside Dexmon, and return to the real world.

Digivolution
In the series, Digivolution is achieved through the generation of "energy spheres", which is formed from the human partner's will. However, if there are negative emotions involved, it can cause the partner to digivolve into a savage version in a process called "Death-X Evolution." The most notable example of this is when Zhìguāng's Dorumon warp digivolves into a DexDorugoramon.