Alina was Saved by …?

"No! Something's hiding in the Heart of Demon and it can defeat our Angel's Light!" 

"We'll become fallen angels once our Angel's Light has been corrupted by the Heart of Demon!"

"This is a trap! It's luring us in! Run!"

"Save me! Please, save me!"

An angel was surrounded by black demon energy, continuously pouring into his body, causing his whole body to tremble. The brilliance was like a candle flame flickering in the wind. His face was twisted and he was crying for help. The next moment, his wings turned black, his eyes became as deep as black holes, his breath suddenly changed, and a cold tyrannical breath came out from his body. 

"Power, I want power! I want to follow in the footsteps of Lord Devil and seek unparalleled power!" He slowly turned his head and looked at his former comrades. 

The angel was trying his best to resist the devil aura, flapping his wings in the black gas, trying to rush out.