What if the ☆ is reference to the pentagram and ""Lucky"" Star is the Morning Star(Lucifer)?
https://en.wikipedia.org/wiki/Phosphorus_(morning_star)
Consider the occult aspect of anime characters, they're abstract hypersigils that are magnets for tulpa creation(the waifu thoughtform->Unconcious tulpae/egregore of character evoked->Astral entity summoned& attached to tulpa), and there are millions of weebs who power up these egregores.