I’m a Witch at an American High School [Western Fantasy]

[Lighthearted + occult + Lovecraftian horror + a wild mix of urban legends] Holly Li transmigrates into a book, becoming the younger sister of the heroine of a foreign teen romance novel... Nothing new there, so let's set that aside for now. What's new is that, on Halloween, she nearly destroyed the world. First, the school bully who was always picking on her died. All that was left of the body was a head rolling around the bathroom. Then the book's second male lead died trying to save her, and she could feel the world collapsing around her. The monster she summoned presses down on her back, its slick tentacles winding around her ankle. “So, does this qualify as a scary enough story to become an urban legend?” To save her precariously normal life, Holly has no choice but to trick the monster into pretending to be the second male lead. That is, until the real second male lead, now a zombie, stands at her bedside and shakes her awake. “Hey, can you sew my finger back on? You broke it when you buried me.” Holly: I don't dare open my eyes. I hope this is just my imagination~ She seems to have accidentally turned this novel into a horror story. That's all. Reader's Guide: 1. The heroine is a walking punchline, but don't underestimate her or she'll leave you flat on your face. 2. For the sake of comedy, some logic and ineffable atmosphere may be sacrificed. 3. The monsters in this book pay tribute to classic horror films and novels. The story mostly deconstructs and pokes fun at them. 4. This book contains many stereotypes and dark jokes. Don't take anything personally in real life! Theme: Don't lose the courage to seek adventure.