Yang:The thunderfaller is a Kiihakai user same as me who would be able to learn so many techniques from me without a cost and also is a lunargoth so he can double his gains from Runes under my tutelage that is why I believe Kaito is the best trainer for him.
Eldra:I agree having mastery over all styles and elements I can guide anyone regardless of their style and can provide them abilities no one can that is why I agree Kaito is the best option for the Thunderfaller.
Kaito whispering "I agree"
The idea that Kaito is canonically agreeing to this because it sounds absolutely hilarious, and the idea of giving the Flayed God Foundation to a Kiihakai/Aoyusumu/Kurokonton Thunderfaller is funny as **** because no one would ever expect them to have it, and the sheer contrast and unsuitability of it makes it all the more funny.
Kaito: "Training you wrong on purpose as a joke is actually a master plan of peerless genius by all of us three Archons, you wouldn't understand how big brain this was."
Thunderfaller's honest reaction:



