The Demoness Gave Me an Evil Art from the Start, But I’m Immune to Its Side Effects

Luo Bai transmigrates into a fantasy world, where a fairy-like woman offers herself to him from the start and promises to teach him her cultivation technique. They are even supposed to ascend together! His smile hasn't faded when he discovers that she's actually a demon sect enchantress, and he's nothing more than a test subject for her cultivation experiments. The so-called immortal's cultivation technique is really an experimental version of a demon sect art, full of deadly flaws. Train it well and you'll explode and die. Train it poorly and you'll turn into a grotesque monster, only to be struck down by the enchantress! Luckily, he awakens the Side Effect Immunity System, and begins a unique path of cultivation that no one can replicate.