After Mistaking the Villain for the Male Lead

"This is a cultivation world overrun by demons. The male lead is Heaven's chosen one, destined to save all living beings. You are the female lead fated to be with him. You must rescue him after he is injured during the immortal-demon war and suffers a tribulation, help him recover his cultivation, fall in love with him, help him defeat evil, and become the heroes who win fame and glory."

In her third year after transmigrating, Qingwu finally found the injured, unconscious male lead in a lake. She took care of him, helped him regain his cultivation, and fell in love with him. Everything went perfectly smoothly.

Until one day, a group of demonic cultivators knelt and cried, "We welcome the Demon Lord and his wife!"

Qingwu: "???"

It turned out that the person she rescued wasn't the male lead. He was the great demonic villain, who was supposed to have died during the immortal-demon war and lived on only in legend.

So where's the male lead, my fated chosen one?

"You mistook him for the dead Demon Lord and buried him by the lake. The grass on his grave is now three feet tall."

Reader's Guide:

1. Low-magic xianxia, not a leveling story or wish-fulfillment, serious tone with sweetness mixed with angst.

2. Plot-focused, but with plenty of romance, too.

Theme: Subduing demons and eliminating evil.