Demonic possession is indicated by a blue rose in somones throat Blue roses and vines in areas show that there is someone possessed nearby, a demonic ritual is happening/has happened nearby or that somewhere is demon territory

What

A common phrase/term folk use is "don't go Cobolt" meaning don't get lost or run away This is because of the amount of the royal family (the cobolts) that have ran off or gone missing

Olympus and Daukius were both lovers in their past life and are both, due to being rushed and faulty builds, entirely aware of it Olympus says nothing because he thinks Daukius doesn't know and wants him to love him for himself rather than because that's the way it was and Daukius says nothing because he wants to keep Olympus safe and not drag him into his dangerous life

The most common religion in the world is Lunox, a religion mainly practiced by crystalline surrounding the worship of the moon, what they believe is a gift from their godess Luna, and a way to watch over them. Crystallines also charge their powers via the moon

TYTYTYYYY the winter solstice is like their Christmas almost Longest night of the year, the moon is seen for longer I kinda got inspo from how people charge crystals auras w the moom