ALCHEMIC;WORLD - The Golden Sun Project - (Golden Sun GBA Soundfont)

ALCHEMIC;WORLD synopsis:
(fictional game title)
Mankind has been been long fascinated by the idea of parallel worlds and the possibility of other advanced civilizations inhabiting said worlds.
Lately, a certain person under the alias of "Arcanus", who introduces himself as a messenger and alchemist from another world, started gaining notoriety on internet forums for his multiple ominous posts alluding to the existence of a parallel world called Weyard and the necessity of this world (this referring to our Earth,the solar system and the rest of our current universe) to merge with Weyard in order to fulfill the so-called "Golden Sun Project".
A group of students with a deep interest in the occult and the paranormal have been trying to document the identity of "Arcanus" and the actual reasoning behind the "Golden Sun Project", unfortunately without getting any significant clues so far.
One day, one of the students suddenly received a message on his phone sent by an unknown source which announces the accomplishment of the first stage of the "Golden Sun Project" and that people should prepare for the "ongoing spectacle".
Since then, even more strange and unexplainable phenomena started to occur...
Who is "Arcanus" and what is the real purpose of the "Golden Sun Project"?