Surprisingly, Cremea.

"I guess I can also take up guard duty tonight," Fio volunteered.

"Good. That just leaves who will keep an eye on Aqua tonight," Kazuma nodded. "Their job will be just as important, as they will be the first line of defense against her getting any stupid ideas."

"I'm! Standing! Right! Here!" Aqua raged at how little they were trusting her, and how open they were about that fact.

"We know, we just don't particularly care," Megumin deadpanned.

"Why don't you keep an eye on Aqua tonight Megumin?" Cremea asked, patting the Explosion nut's shoulder. "I'm sure a good threat to blow her up will keep her in line... Plus, if you're so worried about ghosts, having someone who can act against them would be good for you," she teased.

"I'm not scared of ghosts!" Megumin insisted.

"Sure you're not," Kazuma teased her. He didn't know if she was or not, but messing with her and accusing her of it whether it was true or not was too good to pass up. He then turned to Cremea. "You do realize that that leaves you and me sleeping in the same room though, right?"

"It's fine," Cremea said, blushing.

"Yeah, it makes sense... Her boyish figure should keep Kazuma from getting any ideas," Fio giggled.

"I'm not that flat!" Cremea roared in rage, while Kazuma bit back a laugh. Cremea was still pretty to him though, and it's not like he exclusively liked large assets. He did enjoy a bit of variety, seeing as he was going for a harem.