[Crossover] A Human-Shaped, Self-Propelled Bad-Luck Magnet

Our goal: take down the heroine! How do we take her down? Make her get caught in the crossfire even when she's just lying around! That's right, the heroine of this story really has E-rank luck! Every day is worse than the last. She was playing cards with her best friend and somehow lost her memory. Losing her memory would be bad enough, but why are all those ghosts and monsters after me? What do you mean, I have a boyfriend? What do you mean the best friend who's always been by my side isn't my friend, but someone possessing me? After experiencing life as a magical girl and fighting over the Holy Grail, she finally discovers she's the chosen one.