As part of ghost hunting society Mai investigates a high school and as a result, finds herself being haunted by the ghost of a teenager called Naru who refuses to leave her alone until she finds out what happened to him. The journey brings them closer together and she soon finds out that not everything is as it seems with the spirit. AU. Naru x Mai.

Mai fainted in school and Naru force her to have a check up on a nearby hospital, but while he go there with the stubborn girl, he runs into someone he could not avoid, from England. Now, Naru is bound to take a new case at a private school were the son of his English sponsor study. Taking part in the case, as a student along with Mai, Masako and John, what could possible go wrong beside hunting a ghost that attack couples?

"Lin... I think something is going to happen to Mai..." Naru said, reaching for the Van's key, hoping to be mistaken. However, he already knew that what he saw in the vision was already set in motion. Mai was being targeted by a tortured soul of someone from her past and for some unknown reason she wanted her gone, for good. Set after the anime. A Ghost Hunt story.

It seems weird, but harmless, when SPR is hired to make the crying of a nonexistent baby stop. But though Mai loves babies and is more than willing to help, the crying can't be smothered, because how do you fulfill the need of something that was never technically alive? Has a dab of romance.

Mai is facing the problems that come with dating an arrogant narcissist (who's actually just shy), but debunking the haunting of an old hospital used for sport by the locals might not be the best place for that. Oh, and beware of asbestos. Sequel to Cumin BUT can be read on its own.

Mai's graduated from high school and is taking her first steps into adulthood. When a unique case comes along that requires the team to follow a college student who believes himself to be haunted by his demon double, she get's a different perspective on what it means to have a future, including Naru's place in it. Sequel to Cumin and Plain, but can be read on its own.

Sequel to Cumin, Plain, Gang, but can be read on its own. Mai is preoccupied with building relationships with her soon-to-be in-laws, but SPR's ultra ritzy, high profile case in a famous hotel could turn her plans of a wedding into a funeral. No one can be trusted, no one is in the right place at the right time, there's a too easy suicide wandering the halls, and Masako and John are acting dangerously and oddly daring.

Sequel to Holy but can be read on its own. A college legend says that if you walk through a part of campus at a certain time of night with the man you love, if he be unfaithful, he will be marked. But never fear. If he comes out with proof of two-timing, the girl in white will come and get rid of him for you. But what happens when the legend proves true and men start to die? Rated M for scary stuff and peeps almost dying and blood, etc etc.

Sequel to White, but can be read on its own. Mai and Naru have a blissful honeymoon planned with no haunting, no ghosts, no tales of murder, and definitely no monsters. But things can only go so good for so long, and this time they are without Naru's trusted tech or any of their friends. They're on their own, and there's no promise of a happily ever after.

Sequel to Slim, BUT CAN BE READ ON IT'S OWN. Despite being irritable and having to deal with an overprotective Naru, Mai's pregnancy is coming along without complications. But, of course, not everyone's pregnancy goes as nature intended it, and Naru can't hope to keep Mai from the spiritual world forever. Warning, graphic birth scene.