Ahaha... that's... those're the words of someone who's not a fan but wants to sound polite... it's okay, Shirou. I know it disgusts most people...

Um... well, there are a lot of good ones, but the first that got me interested in the genre was Portrait of Markov... you may not have heard of it, but it has to do with a girl in high school who moves in with her long-lost sister... But, as soon as she does so, her life gets really strange. She gets targeted by these people who escaped from a religious camp that was turned into a human experiment prison... And while her life is in danger, she needs to desperately choose who to trust. No matter what she does, she ends up destroying most of her relationships and her life starts to fall apart...