A World Boss?  

"I have given you a chance to retreat, but you guys just triggered my limit."

Before Evie could know what Ren was talking about, a thick cloud of smoke enveloped the area.

"W-what is this?" Evie was baffled at the sudden grey smog that came out of nowhere. It was odorless and tasteless, but she felt the cold seeping into every pore in her body.

"Don't worry," muttered Ren in a soft voice that was a sheer contrast to his tone a few moments ago. "Everything . . . will end now."

He said his last sentence in a whisper but Evie still heard a bit of it.

Something tugged at her heart. The softness and gentleness in Ren's tone made her uncomfortable. Like there were butterflies in her stomach. Even more, the protection and safety he gave off was getting into her.

She cut it before she got used to it.