C1327 Still too Weak

"It's still too weak …"

Niu Thirteen softly whispered.

He turned around, walked to the middle of the deck and sat down.

He took out the black crystal that he had obtained from killing the black stone man. Holding it in his hand, he circulated the《 Unparalleled Devil Arts》 within his body.

He absorbed the terrifying power inside the black crystal to cultivate