Laying Low as the Demon Lord of an Immortal Sect

I have a sword for leaving home, its jade edge sharp enough to cut through clouds.

A horseman from Xiangyang, his spirit and daring bringing spring wherever he goes.

At dawn, he scorns the sword's still gleam; by dusk, he scorns its cold blooms.

He can wield his sword against others, yet knows not how to hold it up and face himself.

This book is also known as Hiding in the Immortal Sect as an Undercover Agent.