I'm a Villainous Demonic Cultivator, Signing In at the Heavenly Demon Sect for 300 Years

After transmigrating to a Mount Shu world overrun by demons, Qin Yu joins the Heavenly Demon Sect and becomes a blood slave. Luckily, he has a sign-in System.

He signs in at the Rebirth Hall of the Heavenly Demon Sect and obtains a Demonic Heart and Daoist Bones.

He signs in at the Myriad Spirits Blood Pool of the Heavenly Demon Sect and obtains the Heaven-Devouring Demonic Art.

He signs in at the Asura Hall of the Heavenly Demon Sect and obtains the God-Slaying Annihilation Saber.

He signs in at the Three Lives Tree of the Heavenly Demon Sect and obtains the Great Soul-Searching and Spirit-Seizing Art.

For three hundred years, Qin Yu signs in and coasts to victory, cultivating to the peak and becoming the Heavenly Demon Sect's undisputed Grand Ancestor.

One day, the righteous sects of the world launch an assault on the Heavenly Demon Sect.

Faced with this crisis, a million disciples of the sect kowtow and beg their ancestor to emerge from seclusion.

Meanwhile, Qin Yu is relaxing in comfort!

"The righteous sects are here, huh? Heh. After losing so many prodigies and getting so many elders conned by me, have they finally caught on?"

"Too bad it's too late!"

This novel and its characters are entirely fictional. Any resemblance to actual people or events is purely coincidental. Please do not imitate.