Project Name: [CLASSIFIED]

Defender - A blue hedgehog, the system's built-in antivirus, and the main character of the story.

Foxo the Third-Party Antivirus - An orange fox, Defender's assistant, is a third-party antivirus, making it vulnerable, but it is much smarter in terms of protection, restriction, removal, and transfer of its rights to other antiviruses.

Eicned the Hybrid - Dark Red Echidna, a Malware disguised as an Antivirus, once also wanted to take over the digital world, but after meeting Defender and his friend Foxo, he changed his mind and sided with the good side. Due to his malicious nature, he is a strong but trusting character, but he can analyze his enemies and identify their weaknesses.

Dark Defender the Third-Party Malware Antivirus - Dark Hedgehog, a Malware disguised as an antivirus, was created by [CLASSIFIED] to defeat Defender. However, like any copy, he is slightly weaker, though he can fight on equal terms.

[CLASSIFIED] - Evil Virus, formerly a normal program, but after a botched update, he became Malware, changing his location to an antagonist. [CLASSIFIED] was previously defeated by Defender, which became the basis of his hatred. Now his goal is to demonstrate his power and seek revenge. He can inject his software into other Malware, turning them into puppets, or create his own software to serve him, such as Dark Defender. Tactics: He uses other viruses (which he calls "friends") to create chaos and distract Defender and Foxo. He can manipulate viruses, increasing their combat power.