Tokihogushi-hen (解々し編, Untangling Chapter) is an original chapter in Higurashi no Naku Koro ni Kizuna: Dai San Kan "Rasen" that involves Ryūgū Rena's past. Minai Tomoe and her sister, Madoka, make another appearance with Ōishi as the investigate the school case happening at Rena's school, along with Ozaki Nagisa, a childhood friend of Rena and a relative of one of the male classmates who got attacked by Rena. This chapter also features the appearance of a new character, Tsukada Satoshi, the Minister of Health and Welfare.