If You Don't Work Hard, You Will Become the Plaything of a Sickly Fairy.

[Yandere + Romance + Fighting of wits + Cool writing + Multiple heroines + Light novels + Cultivation of immortals =? Yun Heng always felt that there was something wrong with his life of cultivating immortals. Since joining the Yunmeng Sect, a mysterious purple-haired elder sister has appeared in the sea of ​​consciousness. She taught him exercises, tempered his soul, and coaxed him to practice hard, but the eyes she looked at him became more and more dangerous day by day. "Have you cultivated the golden elixir? This is a reward from my sister..." A few years ago, Yunheng rescued a girl with white hair, red eyes, and the Supreme Bone from the Demon Cult. However, the girl's only hobby when she grew up was to study how to tie two people's souls together forever while her senior brother was asleep. At the apprenticeship ceremony, he accepted a charming junior sister on his behalf according to his master's orders. It turns out that this charming little junior sister's true identity is actually a saint from the Hehuan Sect, and all she wants to do is turn him into an obedient puppet. Even the beautiful Master Hei Changzhi, who has been in seclusion for many years and is full of great ideas, also closed the door of the cave tightly after he broke through the golden elixir, and had to check his body carefully. Yunheng gradually discovered that these fairies seemed to be waiting for him to grow up. They practiced too fast and they wanted to test the results. He was too slow in cultivation, so they planned to capture him and raise him for the rest of his life. In order to maintain his freedom, Yun Heng could only practice hard and try to suppress all these yandere fairies before being brutally murdered! "I am cultivating immortality so that I can enjoy fighting. Why are I so yandere-y along the way!"