It was stated to be an experiment to connect with the Boundary using a Dimensional Boundary Prime Field Device, which ended in failure, but it actually was an attempt to create a Black Beast to use it against the Novus Orbis Librarium. The Takamagahara System used their Nox Nyctores, Gigant: Takemikazuchi, to prevent the birth of the Black Beast, and annihilated Ibukido.
The Prime Field Device which was used in the experiment, Mu -No. 12-, was saved by her cocoon, but her smelting was interrupted, and she lost all her memories because of that. She was later adopted by Edgar and Claire Vermillion, and was named "Noel Vermillion".