Biodata
| Feature | Details |
|---|---|
| Name | Hikari (光) |
| Alias(es) | Yagami Hikari; Light of the Digital World; will of the Digital World |
| Gender | Female |
| Affiliation | Digital World |
| Occupation/Role | Holder of the Digital World's root authority |
| First Appearance | Chapter 25 |
Power Progression
| Stage / Realm / Level | Chapter | Notes |
|---|---|---|
| Developing affinity with the Digital World | 124 | After reuniting with Taichi, she begins increasingly resembling Homeostasis and the World Tree. 124 |
| Light of the Digital World | 517 | Takes hold of the Digital World's root authority, becoming its Light and will. Her Digital interface is smaller in scale than the World Tree's, but she is otherwise described as nearly comparable to it. 517 |
| Candidate for Digital Cosmic Truth | 517 | The Digital Cosmic Truth is described as especially suited to her; Taichi concludes that she is naturally better suited than he is to pursue it. 517 |
| Prospective personal disciple of Hermes | 518 | Hermes identifies her Heavenly Mandate, aptitude, and opportunities as exceptional, offering to take her as a personal disciple and guide her toward becoming a Great Supernatural Being. Her acceptance is not yet confirmed. 518 |
Background / History
Yagami Taichi originally believed himself to be the only version of himself without a younger sister. Through the Chat Group, he learned that other Yagami Taichis generally had companions and a sister named Hikari; he later obtained coordinates for a parallel-world “Yagami Hikari Who Lost Her Brother.” 25 35
Taichi travelled to a 2012 Earth to find her, worrying that the frequent chaos he witnessed there might endanger her living conditions. 94 By the time of their reunion, their combined development had begun to show unusual results: Hikari steadily moved closer to the nature of Homeostasis and the World Tree, while Taichi showed signs of forming the Royal Knights. 124
Following Taichi’s unsuccessful attempt to master the Digital World’s origin and Digital Power, Hikari seized its root authority and became the Light and will of the Digital World. Taichi recognized that the Digital Cosmic Truth suited her far more naturally than it suited him. 517
Abilities & Skills
Digital World Authority
Hikari possesses the root authority of the Digital World and acts as its will. 517
- Her authority is described as nearly comparable to the World Tree’s, aside from the smaller scale of the Digital interface under her control. 517
- She assists Taichi’s efforts to establish the Royal Knights and pursue the Digital Cosmic Truth. 393
- Her connection to the Digital World makes the Digital Cosmic Truth a path seemingly prepared specifically for her. 517
Exceptional Potential
Hermes considers Hikari’s Heavenly Mandate, aptitude, and opportunities “beyond imagination,” believing she may be capable of reaching the level of a Great Supernatural Being with proper guidance and tempering. 518
Relationships
- Yagami Taichi — Her elder brother. Separated from her across parallel worlds before their reunion; Taichi is intensely devoted to her safety and later acknowledges that her aptitude for Digital power surpasses his own. 35 94 517
- Hermes — Prospective master. Hermes offers to accept Hikari as his personal disciple due to her potential in the Digital World’s Cosmic Truth. 518