What is the symbol on this magic circle?

This is an array that represents the call of the first of the twelve constellations. It's miserable, like Yan.

Symbolism: unity, potential power, oppression, disappointment, rotation, ice, the soul of the universe, eternal spirit.

Summoner has given up hope on people, so he wants to summon powerful forces to oppress the ugliness of the world.

Not easy to find, hope to adopt.