After discovering the identity of the real murderer, Rika and Maebara Keiichi decide to put an end to the whole mystery, but they are in a different situation than in Matsuribayashi-hen. Before they can do anything, they have to solve other people's problems. The issues of Watanagashi-hen, Meakashi-hen, Tatarigoroshi-hen, and Tsumihoroboshi-hen exist and must be solved. This arc solves all the mysteries of the series, adds a few new ones, and gives the origins of both Hanyū and the Hinamizawa Syndrome. The ending appears sadder than other arcs by ending with everyone surviving except Hanyū.
The Kizuna version of Mio tsuku shi-hen is substantially different from the original Matsuri version. The biggest difference is that it turns out that Rika in this world was actually Hanyū in Rika's body, with the real Rika having been trapped inside the jewel in the Saiguden. Another difference is that the conclusions to both Kimiyoshi Natsumi and Minai Tomoe's stories have been added. Also, Hanyū's backstory has been removed, as it was a small excerpt from Kotohogushi-hen which has now been released in full. There are various other relatively minor differences.
