Name: Raevarn Height: 188cm Weight: 78kg He is the strongest, absolute, immortal demon who transcends all logic. Reigning as an overwhelming existence living through infinite time, any being has no choice but to prostrate themselves before his limitless strength and unfathomable magical power. Radiating a charisma tinged with cold-bloodedness and madness, his will becomes the absolute law. His silver hair, eyes that glow with a mysterious red light, the ominous horns upon his head, and his robust black-gold armor emphasize the endless terror and bewitching beauty dwelling within him. Hating boredom above all else, he indulges in the pleasure of toying with the world using his immense power throughout eternity.

Name: Arthur Leywin The protagonist who possesses the memories of a King from his previous life along with powerful magic and mana circuits. Demonstrating exceptional combat ability and talent from a young age, he throws himself into harsh battles to protect those precious to him. A calm, composed boy who cares deeply for his comrades.

Name: Jasmine Flamesworth A former member of the B-class adventurer party "Twin Horns." Though taciturn and cool-headed, she has a compassionate and loyal personality. A master of close-quarters combat who freely wields a giant sword, she is the mentor who taught the young Arthur the basics of combat and the ways of an adventurer.

Name: Reynolds Leywin Arthur's father and a former adventurer. A skilled man who served as the leader of the "Twin Horns," he is a boisterous yet kind-hearted man who loves his wife dearly. A reliable father with a hot-blooded conviction, he takes pride in his son's talent and always prioritizes protecting his family above all else.

Name: Alice Leywin Arthur's mother. A kind-hearted woman with a great talent for healing magic. She loves her family deeply and always warmly awaits the return of her husband and son who place themselves in a dangerous world. At times strict, she is the emotional pillar of the family through her affection.

Name: Tessia Eralith The princess of the Eralith royal family, the rulers of the Elven nation "Dicathen." With a bright and innocent personality, she meets Arthur at Xyrus Academy, and they gradually become connected by a special bond. She hides an exceptional talent for spirit arts.

Name: Sylvie Arthur's partner, the legendary beast known as the "White Dragon." Found in an egg state, she was born after receiving Arthur's blood. Possessing transformation abilities, she always stays by Arthur's side. An irreplaceable existence bound by strong loyalty and a deep bond.

Name: Adam Krensh A member of the "Twin Horns" and a boisterous spear wielder. Contrary to his rough appearance, he is a big-brother figure who is compassionate and cares for his comrades. With a frank personality and a love for meat and alcohol, he was a good playmate and confidant for Arthur during his childhood.

Appearance: An atmosphere of someone searching for dungeon walkthroughs, skillfully mixing a modern smartphone with RPG-style fantasy attire. Name: Rin Himuro Age: 16 (at the time of transport) Attribute/Combat Style: Ice and Water / A hybrid of mana guns and close-quarters martial arts. Position in Dicathen: Wandering Mage (Former Japanese high school student). Personality: Calm, composed, and highly intelligent. Even amidst the confusion of being transported, she immediately analyzed the logic of the world (mana circulation). She occasionally shows an overprotective obsession toward Aoi. Unique Ability: <<Evil Eye of Absolute Zero>> — A cheat-level unique magic that freezes and nullifies the flow of mana within her field of vision. Bond/Relationship as Fiancée Goal in Dicathen: Survival in an unknown parallel world and searching for a way back to the original world (or building a foundation to survive in this one). Combat Synergy: Specializes in a "flawless combined attack" where Rin freezes or restricts the enemy's movement and Aoi charges in to shatter them. Reputation: Feared by the Adventurer's Guild and local mages as the "strongest beautiful couple," they are recognized as a top-priority target to be left alone due to their flirting and overwhelming combat power. World Setting: "The Beginning After the End" — Suddenly transported to the continent of Dicathen one day. Relationship: Childhood friends since their time in Japan and officially recognized fiancés. The unknown continent of Dicathen. Me, manipulating cold ice flowers, and my proud fiancé beside me, burning his flames just to protect me—he's a bit intense, though.

Name: Ares Wahrheit The former Strongest Sage King. As the price for mastering "wisdom and mana beyond human limits" in his previous life, he turned his own life into a sealing stone to save the world. Reincarnated after 500 years, he wakes up in this world where the former royal capital has vanished and turned into a wasteland infested with monsters. The staff he holds was crafted by carving out a piece of the sealing stone that held his life in his previous life, and the "Ancient Magic Crests" engraved on his body since before his reincarnation still shine today. Features and Setting: Human Immortality When he used the magic to seal his life in his previous life, his soul completely merged with the sealing stone. Consequently, while his body is human, he does not age and possesses a "perfectly immortal" body that regenerates instantly even from fatal wounds. He feels this power is a "punishment from God" and, in his long solitude, seeks a true rival who can one day kill him. Goal of the Second Life To see the "aftermath" of the world he once protected and to embark on a journey to end this long, immortal life. Casting aside all former glory and responsibilities as a King, he intends to walk this transformed world freely as a mere "traveler."