I Reincarnated As The Outer God

I was going to the school like normal, singing my favourite song while imagining all my favourite scene that can happen with a novel character in my head. I was reading a romance, action, thriller, horror novel by the author named Zack that was set in the medieval times, except that there are different species such as orc, goblin and many more. It story is about someone from the modern world get transported to another world and become a villainess. The reasons I liked this novel even though it has a very common troupe's because this novel's set in the same world of the other works of Zack. I have been following all his Because of that I often smile like an idiot when I'm alone.