If you're looking for manga similar to Mahoutsukai no Hanzai Sousa, you might like these titles.
A young girl, Makora, lives in a strange house without any mirrors. One day, she has a strange dream and when she tells her mother, she seems sad all of sudden. On the way to school, Makora starts seeing strange things and when she comes back home, her mother is nowhere to be found. Only a weird guy seems to know something, he has a message for her from her mother: "Find the mirror".
Souichiro Hino's mother may be a world famous psychic, but she sure has trouble keeping track of everyday details. For example, that 'wonderful' new school she sent him to was embroiled in a string of grisly murders. All of the victims were male students like Souichiro. Nor did she mention that fellow psychic and childhood friend, Itsuki Aoyama, attended the school and was expecting him to do something about all of that. And then there was Itsuki's Love Club, also known as the Ghostbusters. Somehow, his friend had gotten it into his head that a random group of kids – and one friendly spirit of a dead honor student – could take on and defeat The Seven Mysteries of Seika Academy, which actually numbered ten or more. Souichiro didn't have time to object. There was a killer Sakura tree in the garden and a portal to hell in the Emergency Stairwell. If all of this wasn't bad enough, there was that 'connection' between him and Itsuki. They hadn't seen each other for years, yet everyone treated them like a couple! Souko Hino sure had a lot of explaining to do!
Mikami Tsubasa has been away from school due to a heart condition. On Christmas Eve he decides it's time to start a new life and runs away from home! But before he can get far his childhood friend, Gin, gets into a serious accident. Tsubasa, in desperation, pleas for someone to help his friend. His call is answered by someone rather unexpected though, someone calling himself an "angel"...
Are you concerned about rumors? If so, you should go to the Kofuku-ya shop, they will surely offer you something useful.This is a store where they sell happiness, they are wishing for your happiness... or are they?