
Top assassin Livia fails in three absurd attempts to assassinate the sickly Hostage Prince, Julian Shaw. Amidst their entanglement, her memories resurface—he is her forgotten Senior Brother. As the truth behind the destruction of their sect's gate emerges, the two are forced to join hands to hunt down the killer. From pretense and probing to entrusting each other with their lives, amidst the glint of blades and shadows of swords, their deadly conflict ultimately blossoms into love.