I'm The Hidden Villain? BXB(XB)

Jacob Stasis was a normal high school boy who just so happened to play erotic but gory games to fulfil his love for bxb and he was one day waiting for his dream guy to come and sweep him off his feet while overworking himself a bunch to distract him from his not so happy life... At least until he died due to being beat to death by his abusive father. Now he's a character in the ever so popular game My Future Husband Is Crazy! where you follow the heroine on her treacherous journey through the many love interests routes and nearly dies trying to find her happily ever after. Now Jacob has reincarnated/possessed a 'random extra' that was killed within 5 minutes for simply starting up a conversation with the female lead..... or was he? He has been reincarnated as Azrael Belial Adonis, the third son of the most powerful Duke in the empire, he is most commonly known as 'The Duchy's Mad Dog' for his spontaneous behaviour and supposed no-brainer actions. How will Jacob- no Azrael deal with this?

(Hi thanks for reading I don't know much about nobility and like if it's duchy or duchee so pls bear with me here and this random idea came to me at 11:00 at night soooooo yeah thanks for reading and any criticism or tips would be highly appreciated)