Something's Not Quite Right with My Disciple

In a world of immortal cultivation, Su Mu took in six disciples and lived in seclusion in a secluded paradise. He patiently taught them the arts of immortal cultivation. His eldest disciple, Gu Qinghan, had skin like ice and bones like jade, a natural beauty. His second disciple, Yue You Ruo, was beautiful and intelligent, with delicate features. His third disciple, Lin Shu Yao, could charm a hundred people with a smile and was blessed with both beauty and talent. His fourth disciple, Yun Shanxue, was graceful, elegant, clever, and quick-witted. His fifth disciple, Yun Muling, was petite and lovely, naturally beautiful. His sixth disciple, Ling Miaosong, was outstanding and poised, a heroine among women. Each of his six disciples practiced immortal arts, and their cultivation advanced by leaps and bounds over the course of a hundred years. But after a century, Su Mu began to realize that something was off about his disciples. He spent a hundred years investigating, and it wasn't until his third disciple began showering him with attention that he feared the worst! P.S. This is a slice-of-life cultivation novel. If you like fast-paced power fantasies, this isn't for you. It's ideal for passing the time before bed. If that's not your thing, please move along.