Crown of Chaos

On the eighteenth year after coming to the country, Aaron finally remembered the fact that he was a time traveler.
Something was wrong with him.
There was no lovely sister who awakened to kill the Son of God, no emperor on a golden toilet appeared to recognize him as his son, and no one met a group of witches who were being persecuted and in need of rescue.
Even though he has average qualifications, he is faced with the fact that he is the last generation of this family.
It would be great if I could find a job that allowed me to summon creatures using cards.
Fortunately, fate did not abandon him.
The four amiable, kind-hearted and beautiful gods decided to choose him as their representative.
Then, the goal is to put on the Chaos Crown and play cards with these four good brothers!