In his first life, Lucien was a bedridden boy who found comfort in reading High School DxD and other stories of power, devils, and second chances. Dying young, his only wish was simple: a life filled with magic, adventure, and the chance to protect those he loved.
Reborn as the son of Sirzechs Lucifer and Grayfia Lucifuge, the Crimson Satan and the Silver Queen, Lucien awakens with full memories of the original story. Equipped with knowledge of upcoming catastrophes (Kokabiel, Rizevim, Trihexa, and more), he refuses to be a mere spectator.
As the hybrid heir bearing Gremory’s crimson flames and Lucifuge’s silver frost, Lucien walks a shadowed path. He constructs his peerage with purpose, starting with a dangerous stray Nekomata seeking redemption, while quietly guiding Rias and protecting his family on his own terms. However, noble politics, rival houses, and looming betrothals threaten to entangle him before he can rewrite fate.
In a world of devils, angels, and fallen angels, one reincarnated soul will not follow the script.
He will cast his own shadow and change everything.