I'm an Invincible Good-for-Nothing, but My Ridiculous Senior Brothers Say I'm Crazy

[Good-for-nothing protagonist with an overpowered System + adored by all + an entire cast of lovable weirdos + cannon fodder outdoing one another + ensemble cast + no romance] After transmigrating into a book, Lu Miaosheng becomes a good-for-nothing whose spiritual roots are shattered to bits. She accepts a System mission and sets out to turn her fate around. To escape the heroine's persecution, she joins the declining Lingzhi Sect. Looking at her bony, frugal senior brothers and sisters, she can't help exclaiming: What the heck am I supposed to do? And so, she sets out to bring out her seniors' potential, and never looks back. Her eldest senior sister has a natural sword bone, so Lu Miaosheng sends her out to collect debts. Sword cultivators should be cutting down enemies left and right! Her second senior brother is tone-deaf, so Lu Miaosheng custom-builds him a rap noise weapon and sends him on the road to stardom. Her third senior brother is socially anxious, so she creates a secluded paradise where he can raise spirit beasts and write an epic farming saga. Senior Brother Feng has a natural air of leadership, so she supports him in founding his own religion to take on the cults. Senior Brother Xu has a bottomless stomach, so she turns him into the cultivation world's top food streamer, with fans by the thousands. Senior Sister Xu is both cunning and fierce. Lu Miaosheng takes her to target the heroine's harem, and all the devoted admirers switch sides. Senior Brother Wu Dan has an exquisite face, so he becomes the spokesperson for Lu Miaosheng's shop. No customer leaves empty-handed. When asked about the Lingzhi Sect's success, the senior brothers and sisters unanimously point to their junior sister: “It's all thanks to her being completely unhinged.” Other sects come rushing over to poach talent. Lu Miaosheng: “I'm just an ordinary good-for-nothing.”