13. Bölüm: Keiichi, Hojo ailesinin evini araştırırken Satoko tarafından saldırıya uğramadan önce Rika'nın cesedini bulur.

13

Keiichi goes to the Hojo residence to ascertain Teppei's status and finds Satoko in the bath and in need of medical help. Keiichi takes Satoko to the clinic, but finds that Coach Irie committed suicide and that Oishi is missing. Satoko requests that she go pick up some clothes from Rika's house since she's only wearing a bath towel from earlier. At the Furude Shrine, Keiichi discovers Rika's disemboweled body. Satoko believes that Keiichi is the culprit and flees. Satoko comes to the conclusion that he is possessed by Oyashiro. Keiichi fruitlessly tries to convince her otherwise, and Satoko forces him off a bridge. Keiichi wishes that everything in the village dies, and soon after, disaster strikes the village of Hinamizawa: poisonous volcanic gas from the Onigafushi swamp gushed out, murdering the entire populace. Keiichi survives the fall from the bridge and the gas leak, and it is later found out he is the sole survivor of the gas leak. (Source: Wikipedia)