Xuanhuan Cultivator of Demonic Arts, but a Sentinel and Guide

Orthodox xuanhuan, proper demonic cultivation, but when I open my eyes again, I'm in an interstellar Sentinel and Guide story. I'm out of my depth in every possible way.

Hua Zhaoshui: Thanks for asking. I'm not scared, and I'm not putting up with any of this.

It's still the same old routine: eyes open, work myself to the bone; eyes closed, get down to work.

Besides, the people here are fascinating. They're talented and pleasant to talk to. The so-called Sentinels may all have minds in a state of total disarray, but their mental landscapes are open to me, so I can do whatever I want with them.

The demonic enchantress, who excels at manipulating souls, takes on the role of a Guide and gleefully plays around in all those people's minds.

A shattered will, a despairing soul, a murky, viscous mental landscape... How to embrace them, how to soothe them: with the sweetest words and the most indulgent tenderness, she tells them that in her presence, they can ignore all the distractions and restraints of the mundane world. All they need to do is close their eyes and sleep, and they can fall without a care into that infinitely welcoming, abyss-like embrace.

...Then she was surrounded by the lunatics who claimed she'd marked them, all confessing their love to her.

Warning:

The female lead is a textbook demonic cultivator, but the setting is interstellar and follows the standard Sentinel and Guide setup.

Other than her old specialty being a perfect technical fit, nothing else matches. Her home world's tone is at odds with this one, and so is hers. She won't be marked, and she has no spirit form in the traditional sense. It's a sticky, dark Mary Sue story, still an all-pairings, no-brains, everyone-loves-her fantasy.

Theme: I will always be true to myself, traveling beneath the stars toward my ideals and freedom