Remembering Kouga's words to her during the Morax incident, Kaoru decides to live in the Saezima manor's guest room to his dismay. Meanwhile, a pharmacist named Shitoshi Morino is one the run after being made a suspect in the murder of a woman named Reiko Sagashi. Kidnapping a high school girl as his hostage, he is confronted by his old rival turned cop Hanasawa. As Morino and Hanasawa get into an argument over the matter, they and the girl soon realize they are not alone in the warehouse. Arriving in the area, Kouga encounters a moth which embodies a heart-broken woman's final thoughts prior to becoming a Horror's vessel. Following the moth, Kouga learns the Horror is Lunarken, a sadistic glutton who corners her prey in order to feed during a full moon. Arriving to the warehouse and knocking the three humans out, Garo battles Lunarken and slays her. By the time the three humans came to, with no memory of the night's events, Morino is cleared of all charges against him.
ホラーが出現したゲートを探知して、オブジェに辿り着いた鋼牙。そこで残留思念を見いだし、追跡を開始する。一方、女子高生のみやびは、刑事の羽根沢に追われている男・森野によって廃工場に引き込まれる。三人は闇に光る視線に恐怖し、協力して脱出を試みるが、何故か扉を閉ざされてしまう。そこに鋼牙が辿り着き…。
Kouga escucha rumores sobre un caballero de oro horror que mata a las mujeres. Morino Shitoshi, un presunto asesino, secuestra a Sagashi Reiko, para ocultarse de la policía. Los tres están espantados por la aparición de un horror. El horror, Lunarken, posee una niña.
