Saikoroshi-hen is an epilogue of Matsuribayashi-hen which takes place two months later, in August 1983. Rika is run over by a truck and wakes up in a totally different world, where none of the tragic events of the main series ever happened: Keiichi is not in Hinamizawa, Rena's parents did not divorce, the dam project was resolved smoothly, Satoshi did not run away, and neither Satoko nor Rika's parents died. However the club never formed, meaning Rika has no friends, she gets bullied by Satoko, Hanyū is absent, Rika is not revered as the reincarnation of Oyashiro and the village will soon be submerged underwater. Rika has to choose between staying in that world or killing her own mother, which will enable her to leave that sinless world.

As the era changes from Showa, to Heisei, and now Reiwa, the curtain rises once again on a tragedy for the steadily declining population of Hinamizawa. This year, again, one will die and one will go missing on the night of the Watanagashi festival... (Source: Gangan Online, translated)

A cross over series featuring the cast from the Higurashi no Naku Koro ni series.

This chapter of the Higurashi no Naku Koro ni series, called the "Mahjong" chapter, is related to a "dramatic mahjong" game being released for the PSP in November 2009. This time, Keiichi (a boy who moved to the small village of Hinamizawa), finds himself drawn into a special mahjong course at his school. *Notes: Includes the prologue.*

Taisho year 12 (1923). A tragedy occurring in Hinamizawa changes the fate of a lone girl and her friends. The turbulent early life of Oryou, head of the Sonozaki family, one of the Three Great Families, who would later be feared and known as Empress Sonozaki. A missing link connected to the original Higurashi story revealed now.

It's July 2016, and the Tadamura family gathers in the Hirasaka village for the funeral of the grandmother and head of the family: the young man Yukito, his step-sister Yue, his father Masashi, his uncles Nobuteru and Tsunemasa, and his cousins Terumi and Teruya, all come to pay their last respects. But on that evening, Yue witnesses an incomprehensible scene: the grandmother's dead body starts to move and disappears into the night! The morning after, the family wakes up in a strange world, seemingly cut off from reality, where two suns shine… (Source: Batoto)

It is the third and final arc of the *Higurashi no Naku Koro ni Rei* series. *Note: Includes 1 extra chapter.*

Based on the Nintendo DS Game with the same title This version of Onisarashi-hen is told through the eyes of Minai Tomoe, a policewoman who is investigating the strange occurrences happening all over Japan. Akasaka Mamoru and Ooishi Kuraudo are present in this chapter, as well as Tomoe's younger sister, Minai Madoka who is also a police officer, and another male officer, Fujita Shingo.

In the story, for generations the men of the Susuhara family have, upon reaching a certain age, left home and gone their own way, living alone with no one to depend on until they are acknowledged. The protagonist is a high school student who has left home and is comfortable at his new school. But there's a strange girl named Toe Kurokami. She carries what appears to be Japanese doll, and he's sure its hair grows and it whispers things. Meeting her might be his destiny. (Source: Anime News Network)

Mikihiko Inaba is good at studying. He is upbeat. He has three close childhood friends. That is why he thought they could achieve the dream of being accepted into a private Tokyo high school. But that was just too ambitious. Having miserably failed his entry exams and being forced to enroll at the public high school in his hometown, Mikihiko becomes a recluse. When his childhood friend Keiko finds out, she attempts to restore their previous lives, discovering the changes in her friends' personalities...

An anthology manga series.