Name =
Shurei Sitri
Former Name =
Ryan Matthews
Kana =
秀麗・シトリー
ライアン・マシューズ
Romaji =
Shūrei Shitorī
Raian Mashūzu
Race =
Pure-Blooded Devil
Gender =
Male
Age =
17
Nicknames =
- Scion of Sitri
- Prince of Frostbite
- Prince of Sitri
- Shu (by Serafall)
- White-Haired Frostbitten Annihilation
- John Cena of Kuoh Academy
Hair Color =
White
Eye Color =
Blue
Equipments & Abilities =
- Ice Magic
- Nihility Magic
Relatives =
- Lady Sitri (Grandmother)
- Lord Sitri (Grandfather)
- Serafall Sitri (Mother)
- Lord Lucifuge (Grandfather)
- Lady Lucifuge (Grandmother)
- Ashriel Lucifuge (Father, deceased)
- Grayfia Lucifuge (Aunt)
- Euclid Lucifuge (Uncle)
- Sirzechs Gremory / Lucifer (Uncle)
- Milicas Gremory (Cousin)
Affiliations =
- Sitri Clan
- Lucifuge Clan
- Shurei's Peerage (King)
- Three Factions [Underworld]
Status =
Alive
Ranking =
- Super Devil
- Ultimate-Class Devil
- King (Piece)
Background =
Once known as Ryan Matthews, a normal high school student in the human world, his life ended abruptly in a tragic accident. As he lay dying, his final thoughts were consumed by a mix of regret and unfulfilled dreams. But instead of simply passing on, he found himself in a strange, empty void.
In this void, time seemed to stand still. Ryan's soul began to adapt to its new existence, gradually reconstructing itself from pure spiritual essence. The process was much like the reincarnation of Rimuru Tempest—a rebirth driven by instinct and fueled by an overwhelming desire to live again, but without the assistance of a powerful voice or unique skills.
When he finally awoke, he was no longer Ryan Matthews but Shurei Sitri—a pure-blooded devil reborn in the prestigious Sitri Clan. His transformation was guided by ancient devil magic and the powerful bloodlines of the Sitri and Lucifuge Clans, which shaped his body and soul into that of a young devil prodigy.
Unlike most reincarnations, Shurei's new body was crafted not by a summoning circle or devil's contract, but by a natural convergence of spiritual energy and his lingering will to live. His memories of his past life remained intact, giving him a unique perspective on the devil society he was now a part of.
Though he didn't awaken with game-like skills or system-like powers, his rebirth unlocked unprecedented potential within his devil blood. His magic, particularly his Ice Magic and Nihility Magic, grew exponentially, as if his very soul had been remade to wield these forces effortlessly.
Shurei's family ties are as deep as his power. His mother, Serafall Sitri, doted on him from the start, while his grandfather Lord Lucifuge's stoic mentorship tempered Shurei's reckless tendencies. Despite his icy demeanor, Shurei's experiences as Ryan gave him an appreciation for humanity—making him a rare devil who can empathize with all races.
Now at 17, Shurei stands as the Prince of Frostbite and the King of his own peerage. His reincarnation gave him no system or special skill to rely on—only his own determination and the legacy of two of the most powerful clans in the Underworld. His journey is driven by the desire to shape a future where devils, angels, and fallen angels can coexist, and where he can truly become his own person—not as Ryan, nor as just another Sitri heir, but as Shurei Sitri, a devil who lives by his own will.