Yoigoshi-hen

Yoigoshi-hen (宵越し編) is a manga-only side story and "what-if" scenario based on. Yoigoshi-hen acts as an epilogue after an alternate ending to Tsumihoroboshi-hen wherein Rena Ryuuguu succeeds in destroying the Hinamizawa school, killing herself, her friends, and her classmates in the process.

Villagers

 * "Mion Sonozaki"
 * Shion Sonozaki
 * Mion Sonozaki
 * Rika Furude
 * Mifune

Outsiders

 * Akira Otobe
 * Ryuunosuke Arakawa
 * Yae Towada
 * Takumi Kurosawa
 * Akutagawa
 * Chiaki
 * Machi

Mentioned

 * Keiichi Maebara
 * Rena Ryuuguu
 * Satoko Houjou
 * Satoshi Houjou

Deaths and Disappearances
All deaths and disappearances are listed only as they are told in  and apply only for the individual arc, not the overall series.

Deaths

 * Mion Sonozaki, died in the Hinamizawa school explosion June 1983.
 * Keiichi Maebara, died in the Hinamizawa school explosion June 1983.
 * Rena Ryuuguu, died in the Hinamizawa school explosion June 1983.
 * Satoko Houjou, died in the Hinamizawa school explosion June 1983.
 * Rika Furude, died in the Hinamizawa school explosion June 1983.
 * Everyone in Hinamizawa not listed otherwise, died June 26, 1983 of gas poisoning during Great Hinamizawa Disaster.
 * Some people who used to live in Hinamizawa, started showing erratic behavior right after Great Hinamizawa Disaster. Some died mysteriously in hospitals, while others started dying in other strange ways.
 * Mion and Shion's Father, died of an illness a few years before 2006.
 * Akane Sonozaki, shot by a yakuza assassin on orders from Mifune. She later died in the hospital where she was admitted.
 * Akutagawa, committed suicide via carbon monoxide exposure June 21, 2006.
 * Chiaki, committed suicide via carbon monoxide exposure June 21, 2006.
 * Machi, committed suicide via carbon monoxide exposure June 21, 2006.
 * Takumi Kurosawa, strangled to death by Yae Towada June 21, 2006.
 * Mifune, slashed in the back by Shion Sonozaki June 22, 2006.