Why Are All My Apprentices Villains?

[The heroine has no cp] Lu Qing, who has completed many small world tasks, can finally retire with the system after countless years of hard work. She chose to travel to the world of cultivating immortals. She had six senior brothers and sisters who pampered her and solved everything for her. There were no disciples to disturb her, and she lived a pure life, sleeping peacefully every day. But such good days did not last long. Hundreds of years later, the elder brother, who couldn't bear it anymore, cried and begged, asking her to accept a disciple this year. Lu Qing couldn't help but cry because of an old and rough man, so she asked the system to help her choose a few apprentices and take them under her tutelage. As a result, these things are getting more and more wrong: The eldest disciple, because she broke off her engagement with her fiancé, was vengeful by her fiancé, so he teamed up with outsiders to destroy her entire family, and she was the only one to escape with a narrow escape. The second disciple, who was once the proud son of the sect and the genius among geniuses, was shattered by the useless young junior brother who suddenly counterattacked, destroyed his Dantian, and mined the golden elixir. The third disciple was even worse. He was nameless and had been captured since he was a child. He was trained as a medicine man to improve others' cultivation. He was riddled with poisonous poison and his appearance was completely ruined. Four apprentices... Lu Qing has done so many missions in the world. The enemies of these apprentices, each and every one of them, look like the children of destiny who are growing up. And his apprentices are the stepping stones for these people's growth. But... Since they are all Lu Qing's apprentices, there is no chance of being bullied. Let's see how she helps these poor little villain apprentices rise to the top one by one and kill their enemies with her own hands.