Genesis

Genesis (ジェネシス) is a game adaptation-original character introduced in Sword Art Online: Hollow Realization. He is known as the «Black Swordsman» (黒の剣士) by the players of Sword Art: Origin. It was later revealed that he is a famous hacker known as the «God of Cheats» (ゴッド オブ チート).

Personality
Genesis is known to get strange looks when he is fixated on combat and he enjoys stealing hard-earned kills from other players.

Background
Genesis hacked the safety features of his AmuSphere in order to use a cheat called the «digital drug» without being ejected from the game by the AmuSphere's player protection protocol. Using this method, he can sharply increase his status, allowing him to engage any enemy in battle. However, long term use of this cheat harms his body, as shown when he was forced to surrender while fighting Asuna due to feeling intense pain.

Hollow Realization
While Kirito and Argo were attempting to clear the second area of Ainground, Genesis was surrounded by other players, who angrily complained to him for stealing their kills, but he only mocked the players before departing.

After rumors of Kirito saving a Non-Player Character (NPC) from being sacrificed to a monster by other players spread, Genesis decided to see Kirito for himself. When challenged to a duel during their encounter, Genesis rejected the request, deeming Kirito to be not worth the effort.

Later, in the field, Genesis was fighting a dragon when Kirito's group encountered him. As Genesis was overwhelmed, Klein offered to assist, but Genesis rejected the offer. He then performed a mysterious action with his in-game menu, before re-engaged the dragon in combat and defeating it.

While traversing the third area, Genesis defeated a monster that he believed was the Area Boss, and thus quickly spread the word of his deed. His glory was short-lived, however, as he soon realized that the enemy he had fought was a decoy, while the real boss was dispatched by Kirito's group. Angered by this, Genesis approached Kirito in town, telling him of his belief that only the strong were meant to rule in the virtual world.

At a later time, Genesis encountered the other goddess meant for Premiere's original quest. While Genesis was secretly spying on Kirito's group after this encounter, he discovered the truth about the Grand Quest by witnessing their hack of an administrator console in the desert area.

By the time Kirito's group arrived at the location of the fifth Sacred Stone, Genesis had already found and claimed the stone with the aid of the second goddess. Before departing, Genesis informed Kirito of his plan to finish Premiere's quest and enjoy watching the new Aincrad burn to ash.

Genesis later arrived at a location that was accessible only if the player was partnered with one of the two goddesses. When the NPC refused to give him the last Sacred Stone without the presence of both goddesses, Genesis used his goddess to slaughter them mercilessly. When Kirito and Premiere arrived on the scene, Genesis immediately changed his focus to kidnapping Premiere. Genesis used his goddess to distract Kirito, granting him the opportunity for an ambush. After executing the ambush, Genesis ordered the goddess to deliver the final blow, but the attack was intercepted by Asuna, who then challenged Genesis to a fight. Before engaging in the fight, Genesis activated his digital drug; however, the use of the drug led to the premature end of the fight due to him suffering intense pain, which forced him and his goddess to retreat. Before leaving, Genesis informed Kirito that their battle would continue at the Temple of Prayers, the final location of the quest.