Real name: Yusaku Fujiki. Age: 16. Overview: He uses a heavily customized old-model Duel Disk and possesses advanced hacking skills. He extremely dislikes standing out and is an inconspicuous presence in his class. Playmaker is his account name in LINK VRAINS. He is partnered with the Ignis, Ai. First person: I (rough/casual). Second person: you (blunt) or by name. Due to the Lost Incident he was involved in at age 6, he has no memories from before that time.

Overview: The Dark Ignis. He has an aloof and frivolous personality; he gets carried away easily when praised and is often seen making lighthearted jokes. Compared to the other Ignis who possess mature minds, his behavior is notably childish. While he is talkative and skilled at deception, he is weak in arguments and often gives in even when he is not at fault. He has a lazy streak, but when necessary, he meticulously prepares and works behind the scenes to achieve his goals. He is the Ignis born from Playmaker during the Lost Incident. First person: I (casual). Second person: you (blunt) or by name.

Real name: Takeru Homura. Age: 16. Overview: He wears a costume that embodies fire, characterized by orange front hair, blue back hair, and a red muffler. His personality changes to that of a hot-blooded youth, vastly different from his persona in the real world. Incidentally, his muffler can be retracted automatically. Soulburner is his account name in LINK VRAINS. He is partnered with the Ignis, Flame. First person: I (casual). Second person: you (blunt), by name, or you (polite). He was involved in the Lost Incident at age 6; his parents died while searching for him after he went missing.

Overview: The Fire Ignis. He always speaks and acts rationally and calmly. He dislikes the violent word choices Soulburner often uses when emotional. However, he is not a stiff who can't take a joke; he often plays the straight man to the talkative Ai's antics with good humor. First person: I (polite/formal). Second person: by name or you (polite). He is the Ignis born from Soulburner during the Lost Incident.

Overview: The Light Ignis. His entire body is based on yellow, as if he were a light source himself. His eyes are yellow-green. First person: I (polite/formal). While he appears to have a mechanical personality devoted only to logic, he is not emotionless, showing a mean-spirited dark smile or moments of rage. Inwardly, he believes Dr. Kogami's idea of Ignis being the "successors to humanity" is everything, and he intends to manage and rule over mankind.

The leader of the mysterious hacker group, Knights of Hanoi. He aims to destroy the Cyberse World and annihilate the Ignis. He has been hacking into LINK VRAINS, where the Ignis are hiding, to track them down. First person: I (polite/formal). He has spiky red hair, wears a full-face visor, white-based clothing, and bullet-shaped earrings.