He came across an evil witch who were now without any leader and were finding someone strong to help them. He didn't have to ask her anything as that woman was ready to throw herself on him, he didn't mind it but before he could tell her that her life was in danger, she had already thrown herself on him. He had lost his control and started feeding on her soul and when he was done she didn't die.
He was too happy to see her alive as he exclaimed "You didn't die!"
She looked at him confused "Why would I die?"
He laughed as he began to explain his situation "I have been finding ways to die as I am an immortal and the witch queen was about to kill me but at the last moment she decided to spare my life saying that I was a nice person but her attack was too strong that it had me craving for more and more food. Earlier I could survive on normal human food but now I have ended up killing someone many people as I wanted to have their souls."