The Slave Bought by Her Royal Highness the Princess Wants to Kill a God

In this continent where blood concentration determines everything, my blood concentration is zero. The baptismal stone cannot detect my color, and the price column of the slave account book has a "zero" written on it. I was fighting monsters in the arena, and people in the audience called me "zero-concentration waste"—a joke that even the gods didn't want to take a second look at. Until that day, Her Royal Highness the Princess of the Kingdom of Wind bought me. She is the favored person of the gods who meets once in a hundred years, and her concentration is so high that the air flows with her, and her hair automatically moves without wind; I am a gift from the king, her slave, her... Knight? "Norn," she said, "on the day I ascend the throne, I will abolish this entire system." I looked at her and suddenly felt that the deal might be worth it. ——It's just my real purpose, I never planned to tell her. I want to kill gods. Eight. Leave no one behind.