Summer 1983...Hinamizawa is a tranquil village, but its inhabitants have been plagued by strange deaths and unexplained disappearances seemingly every year. Some say it's the terrifying curse of Hinamizawa's legendary deity, Oyashiro-sama, causing victims to be spirited away by monsters, but is this town harboring dark, horrying secrets even more sinister than any supersition or myth?

This chapter is an epilogue of one of the "possible outcomes" of Tsumihoroboshi-hen, in which Rena burned the school and killed Mion and her friends. Many years later, in 2006, the lock has been lifted and a group of five meet by coincidence, one of them claiming to be Mion, and get dragged into the supernatural aspects of the "Village of the Dead".

The story is divided into a total of eight chapters: four "Question" arcs and four "Answer" arcs. Each chapter keeps the same main characters, but ends in a different way. However, each chapter gives valuable answers, hints, and clues to the previous one, while at the same time bringing forth even more mysteries.
The question arcs are: Onikakushi-hen, Watanagashi-hen, Tatarigoroshi-hen and Himatsubushi-hen.
The answer arcs are: Meakashi-hen, Tsumihoroboshi-hen, Minagoroshi-hen and Matsuribayashi-hen.
The side story arcs are: Onisarashi-hen, Yoigoshi-hen, and Utsutsukowashi-hen

In Minagoroshi-hen, the mastermind of the murders was revealed. This time, all the pieces of the puzzle are in place. The last step for the characters to take is putting the pieces together in order to defeat the culprit, obtain the miracle, and break through the barrier of June 1983. Matsuribayashi-hen is a "Good End" in which no major deaths occur.

Summer 1983...Hinamizawa is a tranquil village, but its inhabitants have been plagued by strange deaths and unexplained disappearances seemingly every year. Some say it's the terrifying curse of Hinamizawa's legendary deity, Oyashiro-sama, causing victims to be spirited away by monsters, but is this town harboring dark, horrying secrets even more sinister than any supersition or myth?

Solution to Watanagashi-hen. Meakashi-hen consists of the events of Watanagashi-hen told from the perspective of Shion Sonozaki, with only a few minor variations. In this chapter, the audience sees the true reason for the criminal's murderous actions in Watanagashi-hen — a lost love. The first hints of that which ties together the arcs are given.

The story is divided into a total of eight chapters: four "Question" arcs and four "Answer" arcs. Each chapter keeps the same main characters, but ends in a different way. However, each chapter gives valuable answers, hints, and clues to the previous one, while at the same time bringing forth even more mysteries.
The question arcs are: Onikakushi-hen, Watanagashi-hen, Tatarigoroshi-hen and Himatsubushi-hen.
The answer arcs are: Meakashi-hen, Tsumihoroboshi-hen, Minagoroshi-hen and Matsuribayashi-hen.
The side story arcs are: Onisarashi-hen, Yoigoshi-hen, Utsutsukowashi-hen, and Kokoroiyashi-hen.

Summer 1983...Hinamizawa is a tranquil village, but its inhabitants have been plagued by strange deaths and unexplained disappearances seemingly every year. Some say it's the terrifying curse of Hinamizawa's legendary deity, Oyashiro-sama, causing victims to be spirited away by monsters, but is this town harboring dark, horrying secrets even more sinister than any supersition or myth?

Tatarigoroshi-hen is longer than the previous two chapters, and it is considered to be the most depressing and confusing. Keiichi attempts to help out a friend with drastic measures, but as more and more people die, it's clear he is not the only one involved in this. This time, the spotlight shines on Satoko Hojo as being the "victim". Despite good (though misled) intentions, Keiichi Maebara is believed by some of the others to be a villain in this chapter.

The story is divided into a total of eight chapters: four "Question" arcs and four "Answer" arcs. Each chapter keeps the same main characters, but ends in a different way. However, each chapter gives valuable answers, hints, and clues to the previous one, while at the same time bringing forth even more mysteries.
The question arcs are: Onikakushi-hen, Watanagashi-hen, Tatarigoroshi-hen and Himatsubushi-hen.
The answer arcs are: Meakashi-hen, Tsumihoroboshi-hen, Minagoroshi-hen and Matsuribayashi-hen.
The side story arcs are: Onisarashi-hen, Yoigoshi-hen, and Utsutsukowashi-hen

This manga is based on a Visual novel of the same name which is in turn, the next story following Higurashi no Naku Koro ni.

"Umineko no Naku Koro ni takes place in the year 1986 during the time frame of October 4 and October 5 on a secluded island named Rokkenjima (六軒島, Rokkenjima). The head of a wealthy family named Kinzō Ushiromiya, who lives on and owns Rokkenjima, is near death, and eleven of his family members arrive on the island to discuss how Kinzō's assets will be divided once he is dead. Also on the island are five of Kinzō's servants, and his personal physician. After the eleven family members arrive, a typhoon traps them on the island and shortly after people start to get mysteriously murdered."
-Wikipedia

The game's story takes place in Japan at the end of World War II. Devastated in the aftermath of defeat, the Japanese government complies with the Allies' reconstruction plan. Japan begins to recover from the loss after a few years, but America and China intricately divide the nation on a municipal level. Eventually, China's military districts become Chinatowns, and places controlled by the United States are Americanized. The many Chinese and American immigrants make Japanese people the minority in their own land. Some Japanese are unwilling to accept this fate and secretly gather their strength to challenge the new system.
A girl named Rose Haibara works at the club Primavera and lends money to Japanese people so that they can rebuild their lives. Meanwhile, Leo Shishigami is best known for his reputation among women. Everything begins to change when that legendary man meets Rose in the spring of 1947.

In the recesses of mountain... there's a bus stop at outskirts of a village, it's called "Hinamizawa bus stop". Rika, a female high-school student, together with her junior, Mion visit this place. Twisted relationships that are concerned with the dam construction in Hinamizawa, and the stories of the curse of "Oyashiro-sama" that takes root in this area. What waiting for them is a tragedy, or else...?
This manga adapts Hinamizawa Teiryūjo, the unreleased stage play that Ryukishi07 wrote and eventually tranformed into the Higurashi no Naku Koro ni game/anime/live-action franchise.

Marie is trapped in a horrible situation. She's being constantly tormented by her classmates and regularly molested by her teacher. With nowhere else to turn, she finds herself asking for supernatural help from one of the seven demons of the seven mysteries of her school. All she desires is the death of her cruel classmates and teacher. How far will Marie be willing to go in order to achieve the murders that would free her from her living hell?
(Source: MU)

From Yen Press:

Keiichi Maebara has just moved to a seemingly peaceful new town. He’s making friends and generally enjoying his life until one day he learns of a grisly murder that took place in the little village. His friends won’t give him any details which only adds to Keiichi’s uneasiness. After learning at the town’s annual festival that a death has occurred on that night every year for the past four years, Keiichi is drawn into a web of intrigue to help unravel the mystery of these murders. Things only get more dangerous when he learns that some of his new friends may be involved!

The story of Higurashi no Naku Koro ni is divided into a total of eight chapters: four "Question" arcs and four "Answer" arcs. Each chapter keeps the same main characters, but ends in a different way. However, each chapter gives valuable answers, hints, and clues to the previous one, while at the same time bringing forth even more mysteries.

The question arcs are:
1. Higurashi no Naku Koro ni - Onikakushi Hen
2. Higurashi no Naku Koro ni - Watanagashi Hen
3. Higurashi no Naku Koro ni - Tatarigoroshi Hen
4. Higurashi no Naku Koro ni - Himatsubushi Hen

The answer arcs are:
5. Higurashi no Naku Koro ni Kai - Meakashi Hen
6. Higurashi no Naku Koro ni Kai - Tsumihoroboshi Hen
7. Higurashi no Naku Koro ni Kai - Minagoroshi Hen
8. Higurashi no Naku Koro ni Kai - Matsuribayashi Hen

The side story arcs are:
- Higurashi no Naku Koro ni - Onisarashi Hen
- Higurashi no Naku Koro ni - Yoigoshi Hen
- Higurashi no Naku Koro ni - Kataribanashi Hen
- Higurashi no Naku Koro ni Kai - Utsutsukowashi Hen
- Higurashi no Naku Koro ni - Kokoro Iyashi Hen
- Higurashi no Naku Koro ni - Hirukowashi Hen
- Higurashi no Naku Koro ni Jan - Tsubamegaeshi Hen
- Higurashi no Naku Koro ni Rei - Saikoroshi Hen

Beatrice is dead, her soul shattered by Battler at her own request. Though her body sits across the chessboard, she is no more than a husk of the laughing, impulsive witch she once was. Lambdadelta is more than happy to preside over the fifth game, and Bernkastel willingly steps in for Battler as he takes his leave to collect his thoughts. But two witches can cause all manner of mischief when left to their own devices, especially when they care as little for rules as Lambdadelta...

(Source: Yen Press)

On the surface, Minagoroshi-hen is the solution to Tatarigoroshi-hen; however, it answers most of the major common mysteries of the previous arcs. It is told from the perspective of Rika Furude. Most notably, the true identity of the murderer is finally revealed in Minagoroshi-hen. After Minagoroshi-hen, one more effort is needed to seal the story into a happy ending

Battler assumes control of the sixth game, wielding his new Golden Truth as he parries the logical blows of the detective-and-witch, Erika Furudo. For Battler, what began as a contest over the existence of magic has become a fight to revive the fiery, vibrant Beatrice of his early clashes on the game board. The logical loops and rules of the game were already complex; now, as the game master, Battler must quickly learn how to shape the events to his and Beatrice's ultimate ends without getting locked in a closed room by Erika, the witch of truth!

(Source: Yen Press)