Mysterious Sex Murders and the Spear Cult Case

Years after the Walpugis Night incident, a series of disturbing murders plague the metropolitan area. Couples are found dead during intimate acts, with women unharmed and men reduced to charred remains, save for their genitals. To uncover the truth, a specialized detective unit, Tokken, is formed, including Imari, a survivor of Walpurgis Night. During the investigation, they encounter the cryptic phrase “Spear of Longinus” and a sinister cult linked to the crimes, leading them deeper into a web of mystery and danger.