NTxC's video: WHAT DOES YUI SING HERE from filament by Yousei Teikoku - ANSWERED BY YUI

I made an acapella version of Yousei Teikoku - "filament" and I'd like to know what Yui sings here! Help discovering the true lyrics! 19.05.2017: Well well well! Yui Itsuki, the writer of this amazing song, answered this lingering question of mine in an interview with Manga Tokyo. Me: “In ‘Filament’, at the beginning of the song (0:16-0:27) there are 4 mysterious lines that you sing but are not documented anywhere, not even in the official lyrics booklet! What do you sing there?” Yui: "To be honest, I can’t remember very well, but they are words for fairies and not for humans, therefore don’t worry if you can’t understand."