31 parts Ongoing Seraphina, a master assassin known for her deadly precision and unwavering loyalty, is betrayed by her employer, the enigmatic Lord Valerius. Left for dead after a mission gone wrong, Seraphina vows revenge. She discovers that Valerius is not merely a powerful figurehead but a key member of the "Order of the Serpent's Kiss," a clandestine society obsessed with achieving immortality through dark rituals and forbidden magic.
Driven by a thirst for vengeance and a growing suspicion that the Order's immortality quest poses a far greater threat than she initially imagined, Seraphina uses her skills to infiltrate the Order. She must navigate treacherous social circles, outwit cunning rivals, and master new skills to survive within this dangerous society. She discovers that the Order's pursuit of immortality is not merely a selfish endeavor but a dangerous gamble that could unleash catastrophic consequences upon the world.
Along the way, Seraphina forms an uneasy alliance with a disillusioned Order member, Elias, who harbors his own secrets and doubts about the Order's methods. Together, they unravel the Order's intricate web of conspiracies, uncovering a plot to manipulate the very fabric of reality to achieve their goal.