After Becoming a System, My Own Heavenly Dao Taught Me a Lesson

[Quick Transmigration + Romance + Underworld + System + Comedy + One Female Lead]

"Suitable Host found. Binding System..."

"Host's body has died. Soul transferred to System Space."

"Fine, I'll stop pretending. The Heavenly Dao sent me to help you become a System."

"A gentleman would rather be shattered like jade than remain intact like a roof tile. No matter what you do, I won't..."

"Oh ho ho, let's hear you call me big sister."

"Big sister!"