Satoko worries about the sudden depression and strange behavior of her best friend Rika. The "True Personality" of Rika argues in her Adult Voice with a mysterious voice that belongs to an invisible Hanyū about her own inevitable murder and her vain attempts to try to change her fate.
This arc contains elements from multiple arcs and includes events left out in the first season, such as the "Zombie Tag" game from Onikakushi-hen, the baseball game of the Hinamizawa Fighters and some scenes from Satoko's past from Tatarigoroshi-hen, Sonozaki Shion remembering Hōjō Satoshi's wish and transferring to the Hinamizawa School to take care of Satoko, taken from the TIPS of Meakashi-hen and Mina goro shi-hen. Satoko injecting herself with C-117 and a member of The Club asking a member of the Okinomiya Police Department (Ōishi Kuraudo in Mina goro shi-hen and Kumagai Katsuya in Yaku sama shi-hen) to help Rika because someone is stalking her with the death of the officer at the hands of a Yamainu soldier are also from Mina goro shi-hen. The rest of the arc combines Tatari goro shi-hen, in which Keiichi falls from the bridge after discovering the disemboweled body of Rika and survives to witness the aftermath of the Great Hinamizawa Disaster, and Taraimawashi-hen, in which Sonozaki Mion survives her own ordeal. Ōishi shows her Ryūgū Rena's blood stained hat and asks her the meaning of the cryptic message left by Rena that hints at the motive behind Rika's murder, but Mion dies shortly after she realizes the meaning. Both events happened to Satoko instead with the addition of being pursued by the Yamainu for discovering Rika's body at the Furude Shrine.