"You finally mastered it?" Wan Qiang was a little surprised. "A complete ghost-killing formation?"

Lan Wan'er nodded, "Yes, it's complete."

The ghost-killing formation was tailor-made for Lan Wan'er by Wan Qiang based on her cultivation situation.

To put it bluntly, the ghost-killing formation can only exert its greatest power if it is used by Lan Wan'er.

It's no exaggeration to say that when ordinary practitioners use that ghost-killing formation, the power is 10. When Lan Wan'er uses it, the power is over 100,000...

The difference.

There's a world of difference.

What a pity... Although Lan Wan'er has always had a top talent for cultivation and can master and grasp any technique with a little practice, she knows nothing about the ghost-killing formation that Wan Qiang tailored for her.

Let alone mastering it to perfection, even getting started is a little difficult.

Back then, because the ghost-killing formation was too difficult, Lan Wan'er finally couldn't bear it anymore and gave up, and even threatened that she would never learn it again in her life.

Wan Qiang had called Lan Wan'er over, never having thought she would be able to use that ghost-killing formation. Now that she had said she could, Wan Qiang's questions flooded in.

"Didn't you say you wouldn't learn it again? How come you've learned it again? You girl, do you have a secret from me? Huh?"

Lan Wan'er looked at Wan Qiang, whose expression remained unchanged, but what flashed through her mind was the scene of her failure to survive the thunder tribulation of ascension, her bloody corpse falling from the sky, and the scene of the corpse disappearing out of thin air before they could touch it.

God knows, Lan Wan'er really practiced the ghost-killing formation like crazy because she couldn't forgive herself for not being able to save Wan Qiang at the last moment after Wan Qiang failed to ascend.

She always felt that as long as she learned how to do it, Wan Qiang would appear again.

In order to wait for the day when she could reunite with Wan Qiang, Lan Wan'er put in a thousand times more efforts...

In reality, Heaven had truly been kind to her, and everything had gone as she wished. Now, the ghost-killing formation could even prevent the ghost mother from giving birth to the greatest extent possible, which was unexpectedly great news!

However, Lan Wan'er had no intention of sharing her thoughts with Wan Qiang. She avoided the main point and said casually, "The road to cultivation is long. I practiced everything I needed to during my retreat. How could I miss out on the ghost-killing formation that my sister created for me?"

Of course Wan Qiang didn't believe it, but she didn't ask again.

Even if she doesn't say it, she understands.

It is another kind of tacit understanding between Wan Qiang and Lan Wan'er.

Ten thousand ghosts arrive, and the ghost mother appears.

Wan Qiang quickly used her spiritual power to build a barrier to protect her and Lan Wan'er, while she began to form seals to attack the ghost mother.

Lan Wan'er was also not idle, her figure was as graceful as a swimming dragon, disappearing here and appearing there, repeating this process repeatedly... setting up a ghost-killing formation!!!