God-Killing Shura

I am an ordinary person, but I have accidentally become a flag that is set by the sky. My master is a saint, my lover is a dragon, my servant is Medusa, the king of the desert, and my confidante is the ancient god, the princess of the devil! My enemies are all the gods. If people bully me, I will beat them until they obey me! If God deceives me, I will go against Heaven, so what. With my blood, I can kill immortals, so what if I kill gods? The gods call me 'God-killing Shura'.