hikari⋆₊˚♪'s manga / #Mystery(4)

On the normal, unchanging campus, it suddenly occurred; A murder case where a body was cut open, right into two.On the other side of the unsolved case, the rumor-loving high school students became involved in a certain ritual.From the extremely popular songs on Nico Nico Douga, begins the Project.What is the “Bookmark of Demise”…? Who is the traitor…? What will the conclusion to this story be…?So, can you solve this mystery?

Nakajima Atsushi was kicked out of his orphanage, and now he has no place to go and no food. While he is standing by a river, on the brink of starvation, he rescues a man whimsically attempting suicide. That man is Dazai Osamu, and he and his partner Kunikida are members of a very special detective agency. They have supernatural powers, and deal with cases that are too dangerous for the police or the military. They're tracking down a tiger that has appeared in the area recently, around the time Atsushi came to the area. The tiger seems to have a connection to Atsushi, and by the time the case is solved, it is clear that Atsushi's future will involve much more of Dazai and the rest of the detectives!

Shevon is a writer who lives in a run-down apartment in the streets of the slums. One day, strange memos start showing up at his front door. Before he can uncover the mystery behind them, he encounters a beautiful young man that keeps peeling onions on the staircase next to his unit. After accepting a dinner invitation from the young man, Shevon discovers a dead body in his host’s bedroom...

At Kamome Academy, rumors abound about the school's Seven Mysteries, one of which is Hanako-san. Said to occupy the third stall of the third floor girls' bathroom in the old school building, Hanako-san grants any wish when summoned. Nene Yashiro, an occult-loving high school girl who dreams of romance, ventures into this haunted bathroom... but the Hanako-san she meets there is nothing like she imagined! Kamome Academy's Hanako-san... is a boy!