Gustave, the sixth prince of the kingdom, was destined to marry Princess Abigail of the enemy empire. His mission: to win her trust, extract critical intelligence, and secure victory for his homeland—earning his place as a war hero. But instead, his own kingdom betrayed him. Condemned to execution alongside Abigail, feared far and wide as the “Guillotine Princess,” Gustave’s life came to a brutal end. Yet in the very next instant, he awakens—six years in the past. Now given a second chance, Gustave vows to survive at all costs and crush the treacherous kingdom that betrayed him. To do so, the death-returning prince forges an unlikely alliance… with the very Guillotine Princess who once shared his fate.