A real name is a magical power that any type of wizard can wield.

Broadly speaking, it is a magic that changes through the interconnectedness of everything. For example, the rain of fire from the greenery of early spring is an illustration of the power of the sun.

The first wizard to achieve his true name will be a one-time channel for him to leave the unspeakable, and thus be elevated.

The validity of a true name depends only on the wizard's own understanding, regardless of the order in which it was obtained. However, because everyone's understanding is more or less slightly different, the real names they get are not exactly the same.