The last will of the Ancestral Sevenfold Rainbow enveloped the World-Core!
The will did not raise any fear, only desire.
Any creature could have easily arrived at the World-Core with a layer of the essence of the ancient Sevenfold Rainbow's blood.
However, once the Principal Will of the world had completely fallen into the hands of the Magnetites, the last will of the Sevenfold Rainbow would have followed the final rainbow law into oblivion alongside the Ancestral Sevenfold Rainbow's reward.
On the other hand, if a 'rainbow creature' were to pass the trial and attain the 'approval', when the last Magnetite Star has been brought down, the final will of the Ancestral Sevenfold Rainbow would become an inheritance that would be passed on by will and attach itself to the one who could bring down the Magnetite Star.
'Bringing down the Grand Peak Magnetite Star!?'
