Leaving an avatar behind to help Aiko in the kitchen, Sunny left the Brilliant Emporium with Nephis.
The avatar did not have the benefit of wearing the Nebulous Mantle, but his Transcendent presence would be safely contained as long as he did not enter the dining hall. Since the entire interior of the Brilliant Emporium was situated in the dimensional storage of the Marvelous Mimic, anyone would find it hard to catch a glimpse of what was happening in the kitchen.
The café would still close for the day as soon as the current customers left, though. When Sunny told Aiko about the contract with the Fire Keepers, she was beyond happy for a few moments… however, pretty soon, they discovered a problem.