"A Hundred Ghosts Technique"

An Yue watched Theo use his immortal barrier and the ghosts weren't able to crack it like they cracked An Yue's barrier before. 

An Yue approached Theo and asked him to let her get inside his barrier. 

Theo used his sword to distract the ghost, and then An Yue used that opportunity to enter Theo's immortal barrier. 

"What are these creatures?? None of my techniques or weapons could damage them!" 

Theo was frustrated. He actually wanted to summon Dragon Gary again, but he didn't have enough energy to do so. 

"Old man told me these are ghosts. They're normal spirits but tainted by dark power. We should purify them first." 

"Purify? Oh..that's why my holy sword didn't work against them. But do you know how to purify spirits?" 

"Hell no! If I could, I would've won an hour ago!" An Yue puffed her cheeks in annoyance. 

Theo felt guilty and tried to crack his brain.