Indigo was starting to get a little strained, but it was still holding up for now.

This was where the differences between soul artifacts really started to show. As Felix's strength grew, Indigo was clearly beginning to fall behind.

"It looks like you've done all you can," Felix said, having pretty much gauged Yvian's strength. He raised his right hand and pointed forward.

"Six Word Mantra—Astral Ember!"

Instantly, the soul blade defending Yvian slashed downward. As the one on the receiving end, Yvian could feel firsthand just how terrifying that strike was.

Even though her soul hadn't been damaged, she understood one thing very clearly—Felix was still holding back. She didn't know how much strength he was actually using, but she was certain that she wasn't his match.

After all, she had already thrown everything she had at him.

"I surrender!" she yelled.

Making a clean break when the time was right was crucial. Yvian was smart enough to know that conceding now would at least sav