Teenager Asumu Adachi is at a crossroads. He's about to start high school and unsure of what he wants to do with his life. And as if puberty & homework weren't bad enough, he stumbles upon a huge secret: his new friend Hibiki is secretly an oni! Hibiki & his oni comrades are the only thing stopping the monstrous Makamou from devouring mankind. As Asumu is pulled into a secret war, Hibiki & his allies teach the teenager what it means to be an adult in a uncertain world.
Asumu Adachi and his mother went to Yaku Island for a family reunion. During the boat ride to the island, Asumu meets a man named Hibiki, who has just saved a child from going ove…
Hibiki spends the night at the memorial where Asumu is staying. The next day Asumu meets Hibiki out by the beach and they both talk about what Hibiki does for a living. Asumu witn…
Both Asumu and Hibiki return to Tokyo where Hibiki is sent off to defeat a Yamabiko sighted at Okutama. Later on, Hibiki meets Asumu's mother, who is ecstatic to see him. The stra…
Asumu trails an old man whom he believes has connections to Hibiki after he sees him save a young girl. Elsewhere, Hibiki continues his battle with the Makamou who had been killin…
Hibiki and Asumu have a talk about the school that Asumu wants to go to. At school, Asumu is told by a teacher that if he fails his entrance test to Johnan, he will have no second…
Ibuki, thinking Asumu is Hibiki's student, takes Asumu to where Hibiki and Kasumi are located. Hibiki and Asumu have a discussion about life and the challenges that everyone faces…
Ibuki appears and mistakes Asumu for Hibiki's student, taking him to the sight of a battle. Asumu then joins Hibiki and Ibuki on a trip to defeat an Ittanmomen at Okukuji, where A…
An irritated Akira tells Asumu that he will only hinder Hibiki if he continues following him around and that it would be best for him to leave. Asumu wonders just how true her wor…
Spring break has started and Asumu has already gotten off on the wrong foot, having missed going to the movies with his friend. He spends the rest of the day wandering around town…
Asumu continues to wander through town after being a witness to the shoplifting, not really sure of himself and what to do next. Hibiki and Ibuki team up to take down a very rare …
A new school year has started and Asumu enters high school but still has mixed feelings on the path of life he has taken. Through all the aimless wandering he finds himself back a…
After going through a false wall in Tachibana's Sweet Shop Asumu stumbles upon the Oni R&D room where Midori shines some light on Hibiki's past. Hibiki encounters a Douji and Him…
Hibiki goes to Asumu to ask him for a favor but Asumu doesn't seem to be feeling well. After being given a power boost an Ubume Douji goes berserk, killing the Ubume and the Hime…
Asumu is hospitalized and undergoes emergency surgery after collapsing in class, his high school life comes to a halt until he heals. Hibiki and Ibuki team up to track down and d…
Asumu returns home after spending a week hospitalized and begins his recuperation. Elsewhere, Zanki reveals that he will soon be retiring and expects his apprentice Todoyama to ta…
Zanki and Todoyama come to Sabaki's rescue after being captured by the Yamaarashi. Zanki begins to weaken and proves unable to defeat the Yamaarashi. Todoyama takes Zanki's place …
Kasumi and Ibuki go clothes-shopping on their day-off. After shopping and during their meal, Ibuki sees a Douji and Hime pair in the city and begins his pursuit. Elsewhere, Hitomi…
Akira makes her way towards the ever-changing location of the Oonamazu. Asumu then heads to Tachibana's and ends up helping Hinaka deal with the influx of customers. Later, Ibuki …
Asumu begins his first day at Tachibana's Sweets Shop and discovers that Todoroki and Hitomi are related. Todoroki continues to fight the Bakegani as Kasumi notices something is w…
Zanki visits Todoroki on the battlefield to question about his style of fighting. Asumu begins to have troubles at Tachibana's and is then pulled into a conversation with Ichiro a…
Ibuki and Todoroki, separately, are following two groups of Makamou that are heading towards Mount. Asama. The oni find it strange that the Makamou don't want to fight nor do they…
Ibuki and Todoroki combined their strengths to defeat the pair of Douji and Hime, but the Ubume and Yamaarashi are nowhere to be found. What they do find is something like the two…
Hibiki takes Todoroki to his mountain top training temple to teach him how to play the taiko. Unfortunately, the training seems to be too intense for him. Asumu is assigned the w…
Hibiki and Todoroki's training is stopped midway because they get a call that a villiage nearby has been attacked. They arrive to the seen and realize that the Makamou is a self m…
After Sabaki is defeated by a Kappa, Hibiki is sent out to finish the the job. Asumu, Hitomi, Hinaka, and Todoroki enjoy the day off by going to a water park. At the park they run…
Everybody is out, either enjoying their day off or hunting down Makamou, leaving Asumu and Akira to tend to the sweet shop. Ibuki crosses paths with a strange couple that are dre…
Hibiki, Todoroki, and Zanki track down the group of Bakeneko hiding in the forest shrine. Tsutomu reveals his relationship to the Oni world to Asumu and asks what he wants to do …
After being beaten up by the shoplifter (first seen in A Squirming Evil Heart) Asumu loses his normal cheerfulness. Hibiki sees this and decides to take Asumu for a forest hike. …
Asumu slips and falls while descending a hill causing him to loose his cellphone and Hibiki to loose his cowboy hat. Asumu blames himself and Hibiki confronts the boy about being …
A new boy has transferred to Asumu and Hitomi's school, Kyosuke Kiriya. Kyosuke is good at everything from language to sports and makes Asumu feel boring. The Man creates a new M…
After talking to Kyosuke Kiriya, who lost his father in a fire, Asumu goes searching for his own father. Kyousuke follows Hibiki and, after seeing him defeat a Makamou, looks to …
Kounosuke Kogure, a strong-willed arms developer, comes bearing a gift for the Oni who work at the Tachibana Sweet Shop: the Ongekizofukuken Armed Saber. Unfortunately, the weapon…
After losing the Ongekizofukuken Armed Saber to the Super Douji and Hime, Hibiki and Todoroki lose the ability to transform. They find out that they will regain the ability to tra…
Todoroki and Hinaka's birthday date goes awry thanks to Todoroki's clumsiness and Todoroki feels that he doesn't live up to Hinata's image of an ideal man. Todoroki's love life pr…
Todoroki is in a slump after failing to get back together with Hinaka, Zanki comes to the aid of his depressed pupil. Ibuki comes across Kasumi with another man and becomes heartb…
A mysterious Armor of the Ogre, that gives the wearer the power of an Oni, has been stolen from a shrine. The thief uses it to attack Oni and Makamou alike; leaving the Oni wander…
Having obtained Todoroki's Henshin Kigen, Shuki proceeds to fullfil her vengeance against the large and elusive Notsugo, even if that means endangering her fellow Oni. Ibuki is b…
Hibiki, Todoroki, and Ibuki encounter a powerful Makamou who is immune to all three of their Ongekis. They choose to retreat and come up with come measure to combat it. Ibuki bec…
Hibiki is defeated by the fearsome Yobuko and becomes bed ridden at the Tachibana Sweet Shop. Ibuki searches for Akira, but is lost and doesn't know what it means to be a mentor.…
A mysterious forest appears in the middle of a rice field and devours any and all who step foot in it. The forest worries the Onis as well as the Man and Woman. Kyousuke decides …
Asumu and Kyousuke are both scolded after Akira takes them as students, but they refuse to give up of becoming Onis. Ichirou Tachibana is warned by the Man and Woman that the mys…
With Orochi approaching the number of Makamou are sharply rising, so much so that it is too much for the Oni to handle. Asumu and Kyosuke start their Oni training under the tutel…
A brutally beaten Todoroki is rushed to the hospital after being crushed by an onslaught of Makamou. He has to go under surgery for any hope of staying alive. Hibiki continues to…
After continuously falling short in training Kyosuke gives up on being Hibiki's student. Todoroki, in his current battered condition, looks like he can never again become an Oni.…
Asumu tracks down Kyosuke where he confronts him about stealing the Oni tool and using it for revenge. Being on borrowed time, Zanki continues to fight Makamou. Todoroki, still r…
The Man and Woman lead the Onis to a stone that holds the key to sealing off Orochi, but the task maybe too great for them to handle. Kyosuke becomes more serious about becoming …
After thinking about what it means to die without any regrets Asumu decides that he must walk away from becoming an Oni. Ibuki prepares to put his life on the line to bring the O…
With Hibiki at the helm the Onis stop Orochi. This episode takes place a year later where Asumu has detached himself from the Tachibana Sweet Shop and all those who work in it.
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