Let's Show Our Cards, I Am the Devil Who Launched the Third Natural Disaster

I show my cards, I am actually the initiator of the third natural disaster, Ang Augustine! The terrifying demon king! To regain freedom this time, I need to stain the sky with demon blood, go to heaven, and kill angels! What? You said that I was imprisoned by that stinky bitch of Cherubeus, and I must do good deeds to be completely free? Without it, it is impossible to do good deeds in this life. Well, I'll write you down in my notebook and I'll wait for you... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.