Miyauchi Hiyage

Biodata

Feature	Details
Name	Miyauchi Hiyage (宫内日向)
Gender	Male
Age	16 221
Species/Race	Formerly human; an Awakened supernatural being 162
Affiliation	Jujutsu High / Jujutsu Society 221
Occupation/Role	Founder of Asahigaoka Media; student; supernatural combatant and mentor 174 208
Status	Active 250
First Appearance	Chapter 2

Power Progression

Stage / Realm / Level	Chapter	Notes
Diary recipient / Pure Yang Body	2	Receives a diary that grants rewards for daily entries and obtains the Pure Yang Body.
Ripple Chi Kung and Yellow Temperance	61	Uses modified Ripple Chi Kung and Yellow Temperance to suppress the Pure Yang Body’s presence.
Destiny awakening / Card Master seed	101 113	Gains enhanced perception, limited destiny-reading, and short-range teleportation; the Card Master Template gives him a foundation in space- and destiny-linked magic.
Unlimited Blade Works and the Holy Sword	136 143	Gains access to Projection Magic and Unlimited Blade Works; can project the Holy Sword whose spirit resides in his consciousness.
Breathing Style swordsmanship	143 153	Learns Water Breathing and other styles at exceptional speed, reaching demonstrated Grade 2-level combat ability within days.
Ghoul powers	166	Defeats Kamishiro Rize and consumes part of her RC Cell Sac through Yellow Temperance to acquire Ghoul abilities.
Yellow Temperance: Wonder of U	182	Yellow Temperance merges with Wonder of U, gaining calamity manipulation, remote clones, phasing, and expanded mobility.
Saber and Archer Servant Cards	227	Acquires the Saber and Archer Cards, merges with Heroic Spirit Emiya’s power, and improves Unlimited Blade Works.
Nascent Domain Expansion	241	Develops the beginnings of a Domain Expansion after witnessing one only once.

Background

Hiyage was reborn into a world of anime and manga. His daily-reward Diary gave him the Pure Yang Body, prompting him to hide his abnormality and avoid drawing supernatural attention. Its early side effects—high body temperature and increased hot-headedness—made control a priority. 2

Before his supernatural awakening, he had already transformed Asahigaoka through his creativity and leadership, creating several multi-million-follower influencer accounts and turning the rural village into a popular online destination. He later became the founder of Asahigaoka Media. 142 150 174

After being attacked by Grudges while filming, Hiyage completed his extraordinary awakening on the night Satoru Gojo arrived to save the group. His talent and connections with Honma Meiko subsequently brought invitations from Shinto, Buddhism, and Jujutsu High. 142 143

Appearance

Hiyage is described as handsome, with an increasingly ethereal bearing after his supernatural awakening. His most distinctive feature is his brilliant, unnatural eyes, which become especially conspicuous when he invokes Destiny-related abilities. 132 216

• His eyes emit a visible glow while he reads destiny or teleports. 113
• People who meet his gaze can feel as though he has seen through them. 216
• He can disguise his appearance through Ripple and Stand-based methods. 250

Personality

Hiyage is cautious, strategic, and highly protective of his secrets. Even after becoming powerful, he prefers to explain his rapid growth as the work of “Destiny,” concealing the full extent of his Diary, Projection Magic, and Stand abilities. 2 242

He is patient when teaching others, readily explaining swordsmanship and Ripple techniques to those who ask. He also takes responsibility for people endangered by supernatural incidents, helping Honma Meiko, Mai Sakurajima, and the diary holders rather than leaving them to face threats alone. 126 169 174 210

Despite his helpfulness, Hiyage is pragmatic and willing to manipulate circumstances to secure cooperation or protect his interests. 170 227

Abilities & Skills

Pure Yang Body and Ripple Chi Kung

The Pure Yang Body gives Hiyage exceptional vitality and natural resistance against evil spirits, while Ripple Chi Kung lets him regulate and weaponize its power. 2 61

• Immune to evil spirits, but initially suffers from increased body temperature and hot-headedness. 2
• Can suppress his body’s supernatural aura through modified Ripple Chi Kung and Yellow Temperance. 61
• Normally limits the body’s effect to roughly 10 meters, but can extend it to 300 meters when necessary. 174
• Generates Pure Yang Flame, which strongly suppresses Cursed Spirits. 219
• Can turn a Nichirin Blade crimson and heat it through his solar and Ripple power. 165 177

Eyes of Destiny

Hiyage’s awakened Destiny ability combines supernatural perception, fate-reading, and spatial movement. 101 132

• Perceives people and animals across a radius of approximately one kilometer. 101
• Accelerates his thought process while active. 101
• Sees portions of a person’s current destiny trajectory and can follow fate toward safer locations. 132
• Teleports himself and others; his capacity later reaches seven consecutive 10-kilometer jumps and subsequently increases further. 114 170 182
• His destiny sight can be blocked by special methods. 172
• The glowing eyes can expose his ability unless concealed with Yellow Temperance. 113

Unlimited Blade Works and Projection Magic

Hiyage’s Unlimited Blade Works allows him to analyze, store, reproduce, and modify weapons and related materials. 143 165

• Projected Noble Phantasms are generally one rank weaker than the originals. 143
• His Holy Sword projection is an exception: it is nearly identical to the original because its sword spirit exists within his consciousness, though he can project only one at a time. 136 143
• Scanning and reinforcing a weapon grants temporary access to its former users’ experience and muscle memory. 151
• Can repeatedly project weapons to train copied skills until they become his own. 151
• Copied cursed tools include Black Rope, Soul Release Blade, Playful Cloud, sealing tools, and other Jujutsu High armory equipment. 170
• Can launch at least ten Fantasy Collapses at once when fully unleashing Unlimited Blade Works. 200

Breathing Styles and Swordsmanship

Hiyage possesses extraordinary sword talent, rapidly mastering multiple Breathing Styles despite only beginning formal sword practice shortly before his first spar with Maki Zenin. 153 183

• Uses Water Breathing techniques including Flowing Dance, Striking Tide, and Whirlpool. 152
• Uses Thunder Breathing and Sun Breathing. 152 166
• Defeated Special Grade Ghoul Kamishiro Rize with Sun Breathing. 166 167
• Uses Kusanagi-ryu Ancient Martial Arts alongside his swordsmanship. 162
• Possesses Grade 1-level strength through swordsmanship alone, without using Destiny power. 197
• Can combine Breathing Styles to produce electricity, flames, sword energy, and effects on ambient Mana. 184

Yellow Temperance: Wonder of U

Hiyage’s Stand, Yellow Temperance, evolved after merging with Wonder of U. It combines absorption, disguise, calamity, and autonomous-clone functions. 182

• Devours organic matter and spiritual bodies to acquire power. 189
• Mimics Ghoul forms and disguises Hiyage as other people or creatures. 167 189
• Creates life-sized “little black person” clones that Hiyage can control simultaneously. 182
• Can teleport, phase through walls, and act at range without the former 10-meter limit. 182
• Inflicts escalating calamity on people acting with malice toward Hiyage. 231
• Can be circumvented only by concealing killing intent until the instant of attack. 231

Otherworld Navigation and Card Magic

The Otherworld Navigator gives Hiyage access to regional Impression Spaces, which he uses as a training ground and to guide other Awakened individuals. 125 126

• Returning from Tokyo’s Impression Space places the user at Shibuya Station. 126
• Can use Projection Magic, Ripple Chi Kung, and Yellow Temperance within Impression Space. 155
• Uses Heroic Spirit Cards for Phantasmal Summoning and Servant-level power. 226 227
• Can combine Saber’s Class Traits with Heroic Spirit Emiya due to his compatibility with Emiya’s power. 227
• Repeated Phantasmal Summoning gradually erodes his body with Heroic Spirit traits. 226

Equipment / Weapons / Items

• Diary — Grants rewards for daily entries and serves as the origin of many of Hiyage’s abilities. 2
• Holy Sword — A divine construct whose spirit resides within Hiyage’s consciousness. 136 143
• Nichirin Blade — A sword forged for him by Shinomiya Kaguya; Hiyage can store and reproduce it through Unlimited Blade Works. 165
• Jewel Sword — A high-output magical tool used for long-distance travel and combat. 200 225
• Saber and Archer Cards — Heroic Spirit Cards acquired after his wager with Tohsaka Rin and Luvia. 227
• Black Rope — A technique-interfering cursed tool Hiyage can project; he gave Yotsuya Miko a short piece as a bracelet. 175 231
• Otherworld Navigator App — Allows entry into Impression Space. 125

Relationships

• Miyauchi Kouka — His older sister. Hiyage initially hid his supernatural identity from her, but later revealed his Breathing Style techniques and calamity-control ability. 2 184
• Shiina Mashiro — A close companion whom Hiyage helped with her breathing technique; she openly shows affection for him and supports his plans. 61 142 196
• Shiina Mahiru — A trusted confidante and Kusanagi-ryu student. Hiyage explains the Reverse Side World to her, and their relationship is described as loving and supportive. 162 183 222
• Shinomiya Kaguya — Strategic ally and fellow Jujutsu High associate. She provides swordsmanship resources and seeks to secure Hiyage’s support for the Shinomiya Family’s place in the Reverse Side World. 143 165
• Maki Zenin — Sparring partner and fellow weapon specialist. Her matches with Hiyage test his rapid swordsmanship and hand-to-hand growth. 151 170
• Yotsuya Miko — Jujutsu High collaborator who assists with supernatural cases and receives a Black Rope bracelet from Hiyage. 172 175
• Tohru — Frequent combat partner and magical-research associate. Hiyage tests new weapons and Unlimited Blade Works against her. 227 230
• Kento Nanami — A reliable guide who teaches Hiyage physical-combat techniques and coordinates support during missions. 168 174
• Mai Sakurajima — A supernatural client Hiyage locates, advises, and protects during her ability rampage; Mai develops an interest in him, which he does not reciprocate. 172 176
• Kishibe Rohan — Stand user and manga artist whom Hiyage assists in investigating and confronting Yoshikage Kira. 186 196

Story Role / Major Arcs

Awakening and Entry into the Reverse Side World

After receiving the Diary and Pure Yang Body, Hiyage develops Ripple Chi Kung, Destiny powers, and teleportation while keeping his abilities hidden. A ghost attack during filming triggers his full supernatural awakening and draws the attention of Jujutsu High, Shinto, and Buddhist forces. 2 101 142 143

Jujutsu High Training

Hiyage spars with Maki Zenin, displays Water and Thunder Breathing, copies Zenin combat experience through Projection Magic, and gains access to Jujutsu High’s armory. His displayed ability quickly earns him comparisons to Yuta Okkotsu and speculation of Special Grade potential. 151 153 170

Fujisawa and Mai Sakurajima

Hiyage helps investigate Mai Sakurajima’s disappearance from public perception, uses his Eyes of Destiny to find her, and discreetly clears nearby Grudges attracted by her unstable power. 171 172 174

Morioh Investigation

In Morioh, Hiyage investigates Stand meteorites, assists Kishibe Rohan against Yoshikage Kira, and acquires Wonder of U, which merges with Yellow Temperance. 182 188 196

Gojo Satoru Match

Hiyage spars with Satoru Gojo and uses Destiny-based calamity to create a flaw in Limitless, successfully scratching Gojo. Their match ends without a decisive victor. 219 220 222

Fuyuki and the Servant Cards

Hiyage enters the mirror space associated with the Heroic Spirit Cards, defeats Saber’s afterimage, wins Saber and Archer Cards through a wager, and integrates Emiya’s abilities into Unlimited Blade Works. 225 226 227

Notable Quotes

“It’s all guided by destiny.” 242

Trivia

• Several diary holders initially ruled Hiyage out as the identity of “You Know Who,” but Shinomiya Kaguya and Yukino Yukinoshita later become increasingly suspicious of him. 64 250
• Hiyage possesses a Name Curse that can sense the location of anyone who mentions his name. 204
• He has been described by Masamichi Yaga as a “perfect genius” due to his intellect, leadership, maturity, and lack of obvious weaknesses. 221