The Side Character Doesn't Want to Rise to the Top [Quick Transmigration]

As the only immortal in the Ninth Heaven who controls the Reincarnation Mirror, Li Xi is ordered to help Emperor Wujie enter the cycle of reincarnation and undergo a trial. She thinks it'll be a simple assignment. Who could have guessed... Li Xi: Heaven knows I just want to do my job properly. I wasn't trying to steal the throne! Reincarnation Mirror: Sure. Do you think I believe that? A cool, aloof sword cultivator genius who suffered countless hardships as a child x a snake-demon mountain bandit king According to the script, Li Xi is a minor villain, a snake demon who treats the male lead as her captive furnace, torments him for a year, then gets killed by righteous cultivators. The male lead then joins the immortal sects and rises to success. Li Xi follows the plot faithfully, and finally manages to fake her death after a year. But... wait, how did she become the bright moon of his heart and the source of his inner demons?! An unknown little immortal who is immortal x a dog emperor who takes pills and refines elixirs to stay alive for the immortal he loves At first, Li Xi (troubled): How can she trick him into thinking immortality is actually scary? Got it, she'll tell him he's impotent! Later, Li Xi: Stop taking those pills. You're scaring me. A frail, sickly young master from the Valley of Medicine Kings x a naive, sweet martial arts fanatic from the hidden world When she first meets the frail young master, he's wearing a white fox-fur coat. He's tall, pale, and beautiful, and his smile is like the aloof moonlight on the treetops, noble and elegant. Later, this frail young master pins her to the bed and makes her sob uncontrollably while coughing up blood. "Are you going to go injuring yourself like that again?" "...I won't." A cool, aloof goddess who transmigrated into a body to raise a child x a dark, possessive knight who has a mother complex "Are you going to leave me again?" The golden-haired knight gently holds the hand of the dying woman, speaking with devout calm. "You really are terribly disobedient. You abandon me again and again, then show up again as if nothing happened." "What do you take me for, a dog? Even a dog has the right to choose to die alongside its master, doesn't it?" Li Xi: ...What else can she do? She raised the boy herself, so she has to comfort him. A child of destiny from the apocalypse who has undergone multiple reincarnations x a bionic AI A resentful female ghost who has nursed a grudge for six thousand years x a powerful exorcist carrying a curse PS: A lighthearted, fun, goofy sweet romance, written to indulge my own tastes, 1v1. Theme: Wait patiently for the flowers to bloom