Arriving to a hospital once noted of a Horror sighting, Zaruba cannot seem to detect anything out of the unusual. The next day, after being evicted, Kaoru forces her way into Asami's place, unintentionally getting her sick as she is taken to the hospital the same time Kouga attempts a second look over, uneasy about Zaruba inability to sense their surroundings. He then up with the wife of one of Dr. Tategami's patients, who she last saw going to see the doctor to thank him. Interested why a Horror would spare human lives to eat them, Kouga meets Tategami who reveals himself as a host to the Horror Pazuzu who explains he is preparing his meals for finer taste. Learning he cannot summon his Soul Metal Armor, Kouga is forced to fall back with Pazuzu summons his Horror staff to kill him. After refueling his Madoubi, Kouga decides to use Kaoru to take out the source of the anti-Makai barrier Pazuzu erected. As Kaoru is forced into it, Kouga battles the Horrors until he can become Garo, slaying Pazuzu after defeating him as a response to his final wish to taste Kaoru.

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.

Kouga hunts Horrors at a local cemetery, losing one when he is wounded by a dagger from an unknown assailant. Running into a middle aged prostitute named Kotomi, who just beat up a man and hurting two younger girls for their money, Kouga runs off after he checks her for possession and finds her clean, just as Kotomi is quickly possessed by the Horror. The next day, after getting his injury tended to and negating the poison, Kouga learns from the Watchdogs that the weapon is a Dagger of Haja which only Makai Knights would use. Meanwhile, forming a pact with the Horror inside her, Kotomi regains her youth as she starts killing off men. Meanwhile, while looking for a job, Kaoru is saved by a couple of seedy guys by a mysterious young man, whose words put her not at ease. Kaoru shows up for the job of bartender before witnessing Kotomi killing up her employer, Kotomi chases Kaoru to the harbor as Kouga appears. By then, another dagger appears belonging to the man who saved Kaoru earlier, telling Kouga he is also a Makai Knight. Annoyed, Utoque attacks as Garo battles and slays the Horror. Kotomi asks for help as she dies, but Garo says it is impossible as she allowed the Horror to possess her in the first place. Soon after, Rei formally introduces himself, before confusing Kouga and Kaoru and taking taking his leave.

Unable to find information on Rei, Kouga and Gonza speculate that he is from the western district. Kouga made arrangements for the Barankas fruit with Gonza and he heads out for his routine of sealing and entrances used by Horrors; finding that Rei has been doing his job. Kaoru gets a new job as a waitress and Rei stops where she is working for a table full of sweets. Soon after, Rei attempts to kill Kaoru in the back entrance, but Kouga appears to stop him. After having Kaoru be taken back to his manor, Kouga confronts Rei as the two fight their way through Shinjuku's Capital Building where they get a brief interference from a Horror before the two assume their Makai Knight forms. The two fight their way down the Capital Building before they run out of time with Garo the winner to ZERO's dismay.

While training, Kouga is a bit annoyed of Kaoru drawing his hand. Gonza tries to quell the situation by offering English tea, but Kouga leaves in frustration while Kaoru is wondering why she has not been able to draw lately. Meanwhile, a young barkeep named Misato Kosugawa, who became a serial killer after the suicide of her lover, ends up becoming the Horror's host to complete her collection of ideal fingers to complete a set of hands. Sensing Kaoru entering her place of business, Misato decides to kill her for her finger while Kaoru is in a drunken stupor when ZERO arrives and drives the Horror away with Kouga's aid. Assuming its true form, Moloch battles Garo and is slain with only Misato's engagement ring left. Kaoru and Kouga return home with Kaoru sketching his hands again as he rests, stating that his hands are not dirtied as she thinks about her desire to draw something important.

Kaoru is hired by school headmaster Yagi to restore a mural of a goddess her father painted years ago but no record exists of what the damaged area looked like. While purifying his sword, Kouga is sucked into an alternate reality where he meets a version of Garo. Kouga, having defeated 100 Horrors, must face an ordeal. Kouga instead tries to battle the Horror Humpty, but cannot hurt it. Kouga soon passes the ordeal and is granted the Makai Horse Gouten, which he uses to defeat Humpty. Meanwhile, Kaoru remembers her father's inspiration for the mural, and restores the goddess to her former glory.

The Horror Asmodai appears and, using his act as a puppeteer, causes groups of people to kill each other before devouring their remains. While going through her father's things, Kaoru discovers the unpublished book from her dreams with the blank page at the end of it. Asmodai strikes again before the Makai Knights eventually destroying him.

The trickster Horror Dantalian lures people to play his coin game but, when they lose in his fixed games, he devours their soul. Dantalian tries this trick on Kaoru and takes her soul. After facing off against Zero, Kouga encounters Dantalian and competes in his games to recover Kaoru's soul. He eventually succeeds, destroying Dantalian and reuniting Kaoru's body with her soul.

Gonza and Zaruba reflect on Kouga's growth as a knight, remembering him training with his father, Taiga. Out one night with his father, they encounter a Horror, with Taiga becoming Garo to destroy it. Later, Kouga witnesses his father dying at the hands of what he thought to be a Horror, though it is actually a figure named Barago. Kouga trains for years to be able to use the Garoken and fight as the new Garo, eventually becoming the man he is today.

This is a special recap episode, narrated by Zaruba. This recap episode features information about the characters, the story, and the villains of the series that developed so far. The only new information is that Karune Ryuuzaki pays Kaoru for their sessions. The Horrors that appeared so far has also been named. The last bit of the episode shows Garo fighting Horrors on board a falling train, surviving as he is revealed to have overheard Zaruba's whole recap conversation during the fight.