Why Are the Psychos Obsessed with a Mere NPC?

Jian Yu bound to a system and transmigrated into a Mary Sue Noble Beast School novel as a background character.Like a book fan, she both anticipated the male leads' appearances and secretly bet on whom the heroine would ultimately love more.Was it the otherworldly handsome first, or the cold and abstinent second?The gentle yet manipulative third, or the calm and scheming fourth?Or perhaps the ruthless fifth, the selfish and vicious sixth, and the crazed and morbid seventh?They always had ways to make the female lead willingly walk into their cages.The heroine feared their approach and loathed their condescending charity, yet she had no choice but to hide under their protective umbrella.Before dying of old age, she wished for freedom, hoping never to be entangled with F7 again in her next life.——The system told Jian Yu: “You are just a background character, equivalent to a piece of the scenery. No one will notice you.”Jian Yu relaxed and finished watching the plot, then quipped under her breath: “Damn girl, living so well, let me act in a couple of episodes too!”It was rare for the system to find a host who shared its views.It secretly went and had a fight with the main system, successfully winning a “rebirth” side story for Jian Yu.Thus, Jian Yu discovered that the female lead had changed, and the plot had gone off track.She started being secretly watched and frequently received love letters, dresses, jewelry, and even the purple brooch representing the highest echelon of the nobility from the dark and unhinged psychos.Those male leads, who were supposed to be hopelessly obsessed with the female lead, now had their eyes firmly on her.