Transformed into a Cold Junior Sister: She Does Everything in Private

[No CP + interests first + no emotions + uncleanness, many male supporting characters but no male protagonist] Good news: Lu Ling'er traveled through time and became a cool junior sister Bad news: The beginning is a big medicine fed by the master Good news: With your own luck system, you can change your life against the odds. Bad news: You can only exchange for furnace body constitution in the mall. After Lu Ling'er, who was originally a Blue Star man, traveled to the Cangxiao Realm, he became the purest junior sister of the Immortal Cultivation Sect, and was even assigned to a system that defied the heavens. "What do you mean I have to rely on the furnace body to get close to the children of luck, seize their luck, and then use the stolen luck to exchange for more furnace body physiques?" Fortunately, one can cultivate immortality in this world, so Lu Ling'er wouldn't care about these trivial details...? (Essentially, I wanted to write a female version of the Immortal to make up for the regret that the Immortal had never sold hooks. As a result, Xiao Lu became more and more adorable, and everyone just thought she was a bad girl.)