Frustrated that no one believes her, in order to capture a serial killer, a mind-reading detective teams up with the head of the "occult division"... who's a lot younger than she thought.

Volume 8-9 is a special one, as it talks about Rapunzel's side story.
This is an additional volume called Koori no mamono no monogatari Gaiden, which is an anthology of short stories featuring different protagonists of Koori no Mamono no Monogatari,

From Stage Storm:
This manga includes four different stories dealing with horror and supernatural stuff.
1) Constellations that Sing of Death
2) Mist When You Turn Around / When the Fog Comes
3) Shiver of Flames / Fire Starter
4) The Mansion of Time / The Castle

From Hana-mi:

This series is adorable. And occasionally freakish and violent. Mutsu Kokonose, a tiny exorcist and holy terror, crash-lands on a mythical island where the fairy tales are real...

In the spiritual land of Kunisaki, Highschool freshman Nonoka Kibe runs a consultation office for the supernatural. As the only one who can see them, her goal is to aid in any way she can, along with her oni friend, Chibiki, and her Yamaha TownMate.

Hayama Makoto is tormented by sightings of shinigami*, Asano Mitsuki dwells on his dead sister's shadow, and Koumoto Yaeko longs for the love of her life―these are the heart-rending yet tender tales of the people whose thoughts dwell on life and death, and of the white Shinigami Momo.

*Shinigami (死神) is a figure in Japanese culture responsible for collecting the souls of the dead, and literally translates to "god of death."

In a place called Polyphonica, humans and spirits live side by side. Young musicians create magical sounds with their music, which bind the spirits to them.

A struggling student named Phoron accidentally summons a spirit he met in childhood but later forgot about. Phoron could use all the help he can get, but this feisty spirit may prove to be more than he can handle!

Souma Kenichi is in a bit of a pickle. A group of thugs has cornered him on the side of the road and seem very intent on his life. Desperately fighting them off with the longsword he can summon at will, he is saved when a famous teacher of the Miyazaki School and his student intervene on Souma's behalf.Confused but grateful, Souma learns that the sword he wields is called a "shinbuki", or true weapon. Stronger than any steel blade, a shinbuki is created by channeling inner energy into your surroundings and materializing it into a weapon. Normally, learning to wield these supernatural weapons takes years of training under a master. However, a coveted few like Souma are born with the ability to wield shinbuki at birth, and master its use at a startling rate. These rare prodigies are called "Tensaiji".Hunted by a mysterious organization intent on eliminating him before he can become a threat, Souma has little choice but to accept his benefactor's offer of free admission into the Miyazaki School.Note : This manga read from Left to Right

The Soichi Front
The story is a direct continuation of "Secret of the Haunted Mansion" from the first Yami no Koe.

Soichi's Beloved Pet
This story is about Soichi, the devilish boy that Ito has written about in a number of his other stories, and the events that unfold when his family adopts an abandoned cat.

In The Valley of Mirrors
There is bitter enmity between two villages, facing each other across a river. But instead of erecting walls and battlements, they both decided to put up mirrors. What could this mean? And where did all the people disappear to, all those years ago?

Anything but a Ghost
While driving on a mountain road one night, Shigeru finds a girl covered in blood.

Library of Illusions
Koko lives with her husband Goro in a giant mansion full of books. The books are a family heirloom, and he’s fiercely protective of them, so it would really suck if something were to happen to them...

Songs in the Dark
Ever had a song stuck in your head? Of course you have, there’s probably one there now. But what if it didn’t go away? Days, weeks, months, the same song 24/7.

Splatter Film
A bunch of stoned slackers get hooked on delicious honey, with delicious results.

The devastation caused by the Kantou Hell Quake sunk the buildings in the center of Tokyo deep beneath the waves. A great number of human lives and and a great deal of property sunk along with them. There's no shortage of people aiming to claim these sunken valuables. Many of those people are pirates, who arrived from overseas in salvage ships of unknown nationality. Every night, these pirates raid the chain of small islands, which all that remains of the Kantou region, and assault the survivors.
However, there was no one who was able to stand against the pirates! It was a completely lawless zone. It was Japan, but not Japan: A land and a people completely forsaken by their country.
That is, until Violence Jack rises from the ocean to help the islands' inhabitants fight the pirates and their allies, the New Shu Army.

Pani Poni spinoff featuring the healing-type magical girl.

When this world is no more
The moon is all we'll see
I'll ask you to fly away with me
Until the stars all fall down
They empty from the sky
But I don't mind
If you're with me, then everything's alright

Sennoki Kentaro thinks of himself as a would-be novelist but is actually a NEET living at an old house belonging to his family in Tokyo. By refusing to visit his grandparents' village to participate in a festival he angers a certain Shinto deity.

From ShoujoMagic:
A collection of short shounen-ai stories by Mizushiro Setona, all connected by the theme of plantlife.

[STORY 01] (English Title) Breakfast (Japanese Title) ブレックファスト (Romaji Title) Burekkufasuto
The tale of a boy who displays the symptoms of man-eating syndrome.

[STORY 02] (English Title) The Tale of the Ring (Japanese Title) 指輪物語 (Romaji Title) Yubiwa Monogatari
The tale of two boys who are dating each other and mutually hiding the fact that both are dating their teacher, who frets because a ring has been lost.

[STORY 03] (Japanese Title) Honey β
The tale of a flower that blooms by inhaling memories. But even if our memories are taken from us, some precious things are never forgotten. "I don't fear losing my memory if I can feel this way again tomorrow..."

[STORY 04] (English Title) Undying Illness (Japanese Title) フジノヤマイ (Romaji Title) Fuji no Yamai See "Mister Mermaid," story 2.

[STORY 05] (English Title) Aconite (Japanese Title) トリカブト (Romaji Title) Torikabuto

From justpeachyicedtea:

Consists of five delicious short stories.

1. Smoking Room

2. Yumeutsutsu Break Room
Suzuki, who wakes up as usual, comes face to face with a stranger who says “I was just eating your dream”. This man, who shows up from time to time, now makes him crazy disgusting coffee. But being told his dreams are beautiful and delicious, Suzuki’s heart melts bit by bit.

3. Ibitsu na Kutsuzoko

4. Nonfiction Red

5. Kimi no Tsukue de Odoru Boku

A tale of a girl who can see "wolves."

A boy trying to commit suicide finds a zombie girl that tries to stop him from killing himself.

Chapter 1: Shirube no Michi
Mao's life is far from normal: she attracts spirits and constantly has to keep her father from losing his soul! One day, she meets a man who claims to be a "guide for lost souls" and explains that he has come for her father!?

Chapter 2: Illusion Orangery
Mao's still working for the mysterious spirit guide. One fine day, the smell of oranges lingering in the air accompanies our young psychic on an odd game of hide-and-seek in a haunted house.

Chapter 3: Heaven's Fairy
Shinobu’s plans for the summer are ruined when her mother sends her off to her grandparents' countryside home. Bored and friendless, she prepares herself for a joyless vacation, but soon discovers that she has something in common with her grandfather: something quite magical!

Chapter 4: Foxfire
Miya knows she was found abandoned at a shrine and adopted by her current parents. Though she lives a happy life now, her birthright comes calling on her one day in the oddest of fashions.

Chapter 5: Box
"As long as these white walls confine me, I am safe."

Chapter 6: Angel's Ladder
The twisted - but oddly touching - relationship between a healthy and normal girl and her sickly and spiteful older sister.

Note: These oneshots ran in different magazines categorized as josei, seinen, or shoujo. The majority of them were josei, hence the demographic of the series.

Ririko lost her parents and siblings in a mysterious incident where details remain in the shadows. Before Ririko moves to her new home in Kaminoshiro, a detective gives her a letter that her father wrote before his death, which contained a card with a black and white checkered pattern on it. At her new school, Ririko becomes friends with Maya and has some interest in a male student named Shirou. She questions about the black clock tower that stands in the center of the town, but no one bothers to answer the question. Her new life in her new home seemed all as well until one day Maya calls Ririko out and takes out the same checkered card that Ririko was given to her and she summons some unknown creature! As Ririko is in confusion as to what's going on, Shirou appears and says "Not another one..." What's going on around here?

A strange phenomenon where one is transferred back to the moment right before something life-threatening occurs. This continues to happen until the cause of the threat is erased. It is as if somebody is forcing Satoru to stop it from happening. Then one day, everything is changed. What truths are revealed when Satoru comes face to face with his own past? How will they affect his future?

Boku dake ga Inai Machi: Re (Gaiden volume) is considered volume 9 of the series

Note: Was nominated for the 18th Tezuka Osamu Cultural Prize Reader Award in 2014 and for the 7th, 8th and 9th Manga Taisho Award between 2014 and 2016. Also nominated for the 40th Kodansha Manga Awards in 2016.