Visa is a mercenary who takes money to do things without asking why.
He doesn't pay much attention to rules - if he takes a job, he will finish it; similarly, if the other party makes a price, don't even think about refusing to pay.
He only believes in one dead rule: he must never break the contract he made. Whoever breaks the rules first will let him know what the price is.
After an assassination, he and his partner were surrounded and killed by his own people. The other party received the goods and turned around to kill them.
What he doesn't know is——
What those people really wanted to kill was his partner, and he was being chased only because of the people he was following.
What he doesn't know even more is——
His body was filled with power that should not exist in this world.
Spirit breath and magic element belong to the two races of humans and demons.
And he can swallow both.