Ultimate Summoning Beast

In its initial form, it resembled a regular pupa with a large body mass and tentacles and small arms. After emerging from its chrysalis, it grew feet as its body gained a more humanoid shape. It also had a mouth on its stomach through which it fed and had tentacles in the area where a mouth would usually be. It was also shown to be able to partially morph its own body into that of the animals it absorbed such as growing wings to fly.

The researchers of the facility created the creature to be the ultimate summoning. When Honoka tried to seal it, the creature started devouring the researchers and killed Honoka. The creature afterwards started absorbing the other summoning animals on the island and went into a chrysalis state.