From Storm in Heaven:
In the town that Takada Chinatsu moved to, there's a legend about demons called Tsumitsuki that possess the feelings of guilt a person has over their sins. Those who are possessed are slowly devoured, body and mind, as the demon manifests. As one of Takada's friends starts acting strangely, her classmate Kuroe steps in to help... but his true motives are hidden behind a mask.
Some random gag stories happening around a woman living inside the washer in the coin laundry. Why does she like to live there?
The story centers on Minemori Kotoha, a woman who has been offered work at Suma Research Company "Anti-Detective Section," and Sasaki Rena, its only investigator. This section focuses on rooting out corrupt detectives and removing them from their positions.While the two women spend their days investigating crooked cops, a new criminal is beginning to make his move...
Students from a university mystery club decide to visit an island which was the site of a grisly multiple murder the year before. Predictably, they get picked off one by one by an unseen murderer. Is there a madman on the loose? What connection is there to the earlier murders? The answer is a bombshell revelation which few readers will see coming.