"Oh, hey, Kyuubey," you comment. "Think you can do anything with these?" You pull one of the spheres of Grief out of your pocket and hold it up for the alien to inspect. You don't like it, but it seems likely that this is your best shot for getting rid of these.
"Intruiging," the Incubator observes, as Mami looks up with interest. "Place it in the slot on my back," it instructs, turning to present its back to you. A section of its back enclosed by a pink, ovoid marking fades to abyssal black.
The opening closes again, and the marking glimmers for a moment. The Incubator wiggles in place, chasing its tail around in a circle for a moment, before sitting up and looking at you again. "Most intruiguing. This can be processed, however, the density is considerably lower than a Grief Seed."