Tokkou - Season 1 Episode 2 Dream ~ 'a girl appears'

Being cornered by strange men with brute strength, Ranmaru and Ichiro were about to be killed when the same red-haired girl and her comrades rush in to save them by killing the suspects with their swords and daggers. They reveal themselves to be from the TOKKO division after they eliminate the strange-looking larvae from the decapitated bodies and their forensic teams arrived. The red-haired woman hints to Ranmaru that she was one of the former tenants from the same apartment building where the Shindo siblings once lived in. During an investigation done by Kunikida and his colleague, Shogo Muramasa, on what earlier, they discover that the Machida massacre may have been covered up by those from TOKKO and by the Public Security Investigation Agency (PSIA), citing undocumented reports of a demonic killer in one of the strange incidents in Kameida. Later on, the TOKKI detectives are forced to confront the demon-controlled suspects again to no avail, only for the TOKKO division arrive in time to kill them once again in Miyashita Park. During an investigation on Ranmaru's old neighborhood, he realizes that the red-haired girl was his ex-neighbor Sakura Rokujo