S01E01 I Picked Up the Demon King
Tatsumi Oga, a delinquent student at the worst high school in Japan, arrives at school with a small baby who emits massive shocks of electricity whenever it cries. Oga claims he found after splitting open...
Beelzebub
S01E31: No Conclusion Was Reached!
The fight between Oga and Miki begins, with Miki seemingly beating Oga with ease. He strikes Oga with a technique which Aoi recognizes to be Hakkyokuken, a martial art form from China. Oga continues to fail to hurt Miki, using a variety of "special moves" which don't seem any different from his usual attacks. Miki begins to power up his most powerful technique, which he advises Oga to dodge due to its power. Before he has a chance to use it, he is interrupted by Nanami, the 2nd strongest of the 6 Holy Knights. She is shortly joined by the final knight, Izuma, the strongest of the six. Aoi senses how much power he has and recognizes that they have no hope of defeating him. The students return to their classroom to find a notice, declaring all of the Ishiyama High students who were present on the rooftop expelled. The students go to the Counselor's office to complain, and are told that they have a chance to avoid expulsion - by beating the 6 Holy Knights at a sporting event at the upcoming school festival. The students reluctantly accept and leave the office.
Overview
Violent delinquent Oga encounters a baby one day, which crawls onto his back and immediately forms an attachment to him. Though he doesn't know it yet, this baby is named Kaiser de Emperana Beelzebub IV, or "Baby Beel" for short—the son of the Demon Lord!
Episodes
S01E02 I Became a Gang Leader with a Child
Hildegarde presents herself to Oga's family in the wrong way, giving them a different view of the situation. She also informs Oga that if he is more than 15 meters away from Beelzebub, his cries...
S01E03 Are There Any Strong, Ruthless Bastards Around?
When Oga loses some food for Beelzebub and he starts to get hungry, Oga instead uses up a vending machine's worth of yoghurt drink, revealed to be the favourite of the second year delinquent, Hajime...
S01E04 There Is One Second Before the Demon Lord's Floods Burst Forth
Beelzebub is currently in a phase of non-stop urination that threatens to flood the city. Hildegarde manages to temporarily stop it with an interdimensional diaper, but in order to stop it completely, Oga decides he...
S01E05 Money can buy anything
After a sleep deprived night, Oga notices he has a strange mark on his hand, revealed to be Zebel Spell, a symbol of the contract between him and Beelzebub. Hildegarde and Alaindelon explain that a...
S01E06 Toys Have Arrived from the Demon World / We Played Doctor
The mark on Oga's arm goes back to its small size, much to the chagrin of Hildegarde who destroys his games console. She brings a play room for Beelzebub to play in, but upon building...
S01E07 The Demon Lord makes his Park Debut
Oga's family coerce him into taking Beelzebub to the park so he can make his 'park debut'. Despite making a bad impression with the other mothers, Oga meets a girl named Aoi who is looking...
S01E08 We Meet Again
Aoi and the Red Tails return to Ishiyama High to deal with Oga, despite not knowing who he is. When Takayuki drags Oga to meet her, Aoi is shocked to find Oga is the one...
S01E09 Love is a Hurricane
The delinquent group, MK-5, come to confront Oga, but are promptly beaten by him and Hildegarde, who catches the attention of a smitten Aoi. As Aoi's right hand ladies, Chiaki Tanimura and Nene Oomura confront...
S01E10 A Disciple Was Gained
A stray cat becomes attached to Oga, causing Beelzebub to become extremely jealous and shock anyone he shows affection towards. Beelzebub challenges the cat to a fight and subsequently loses, but when a gang of...
S01E11 There was Something Money Could not Buy
Himekawa plots revenge against Oga by setting him up with a poisoned sandwich, but it doesn't affect him due to his resilience to Hilda's cooking. He next attempts to use a popular costumed character in...
S01E12 I Won't Let You Sleep Tonight
Beelzebub has been crying all night for the past three nights, which is causing Oga and the whole neighborhood to get very little sleep. Wanting to stop his night crying to avoid being chased out...
S01E13 Baby Beel's Assessment Test / Hilda: Dear Great Demon Lord
As Ishiyama High holds an assessment test for its studyphobic students, the Great Demon Lord also holds a test for Beelzebub, requiring him to earn points by beating up various things, or run the risk...
S01E14 Is There a Special Move?
As Kanzaki tries to come up with a new special move to beat Oga, his followers suggest the key to Oga's power is having Beelzebub on his back. Thus, Kanzaki starts training with a weighted...
S01E15 The Delinquents Have Changed Into Swimsuits
Takayuki tells Oga about the final member of the Tōhōshinki, Hidetora Tōjō, mainly to get him interested about ditching Beelzebub so Alaidelon will leave him alone. Wanting Oga to get beaten, Himekawa informs them that...
S01E16 You're Not a Bad Specimen of a Man
Takayuki is dragged away from his tropical summer vacation against his will to join Oga and Beelzebub to a public pool, though Oga is soon shocked by the fact he could've gone to the tropical...
S01E17 How About Some Demon World Homework?
The Demon King sends Beelzebub some summer homework, containing a notebook which brings anything drawn in it to life. Next, Hilda brings Oga to Ishiyama High to collect prints of rare, powerful beasts, aka the...
S01E18 I Quit being the Baby on Back Brawler
Beelzebub gets a summer cold, causing his body to give off incredible heat. As his condition gets worse, the Zebel Spell on Oga's hand disappears, leading Hilda to become frustrated towards Oga for showing little...
S01E19 The Doctor Has Arrived
Oga returns home after being defeated by Tojo to find that Hilda has returned from the Demon World with the imperial doctor, Forcas Rachmaninoff, and his assistant, Lamia, to help determine the cause of Beelzebub's...
S01E20 Everyone Assemble
Oga reflects on Lamia telling him to take a shower before going to Tojo and sees a silhouette outside his bathroom window and thinks it's Lamia, but it's really Shiroyama, who takes Oga to Kanzaki...
S01E21 Who Do You Think Is Ishiyama's Strongest?
Furuichi is woken up by Alaindelon at 4:00 A.M. and is teleported to Ishiyama High to watch Oga and Tojo's fight with Hilda, Lamia, and Forcas Rachmaninoff. Meanwhile, Kanzaki, Himekawa, and Shiroyama confront Aizawa and...
S01E22 Secluded Mountain Training
Baby Beel's fear of insects prompts Oga to give him some special training up in the mountainous village of Mapputatsu. There, he stumbles across Kunieda carrying Kōta in the disguise she wore at the park...
S01E23 You Kidding Me? The Demon World
As the Zebub Spell is restored, Lamia and Dr. Forcas begins to return to the Demon World through Alaindelon. While they were being transported, Baby Beel grabbed onto Lamia and refused to let go, causing...
S01E24 Welcome Back, Demon World!
Finding Alaindelon's daughter rather attractive, Furuichi vows to rescue her while Gare and Edda leaded him to Oga and Lamia in the village of thieves where Alaindelon's daughter, Angelica is trapped. The rescue runs smoothly...
S01E25 New Semester Started
The students of Ishiyama High settle in at St. Ishiyama, with all the significant characters being placed in the same classroom. Their new homeroom teacher, Sadohara, challenges Tojo to an arm wrestle to try to...
S01E26 May I Call You Brother?
Oga and Furuichi accept Kazuya as their student, after being praised on how legendary they are. Kazuya tries to copy Oga to become strong like him, even making identical lunch boxes. Due to the Teimo...
S01E27 Called the Magical Girl
In order to make up for forgetting his daughter's birthday, Alaindelon brought Angelica to Furuichi's house for a tour of the Human World. Unfortunately while the gifts were being retrieved from Alaindelon, a Yople alien...
S01E28 Let's All Get Physicals
The students of Ishiyama High are ordered to do physical examinations amongst themselves. Baby Beel gets jealous of a toy which accidentally gets stuck to Oga's back, and locks himself inside of a locker to...
S01E29 What Are the 6 Holy Knights?
After being shocked early in the morning by Baby Beel, Oga's enthusiasm to find someone new to pass Beel onto is temporarily reborn, and upon hearing rumors of six students who excel both academically and...
S01E30 Who Could the 6 Holy Knights Be?
Furuichi and Oga survey the school from the roof searching for emblems on people's shirts, and Azusa ends up tagging along in their search. Two students from St. Ishiyama are seen hassling two of Aoi's...
S01E31 No Conclusion Was Reached!
The fight between Oga and Miki begins, with Miki seemingly beating Oga with ease. He strikes Oga with a technique which Aoi recognizes to be Hakkyokuken, a martial art form from China. Oga continues to...
S01E32 What Has the Transfer Girl Done?
Hilda transfers into the class to keep an eye on how things are progressing, with Alaindelon transferring into another class. The students find out the sport will be volleyball, something none of them have any...
S01E33 There Are Wounds in the Past
Oga becomes tired of practicing and walks out of the gym, itching for a fight. He finds Miki training in a nearby Dojo, and challenges him to a fight. Oga takes all of Miki's attacks...
S01E34 Maids Run Amok
The festival is underway, and Azusa is trying to run a Maid café. Furuicihi offers to help, and Azusa and her friends obey his commands blindly due to his reputation as 'The Strategist'. Furuichi persuades...
S01E35 Time for the Game to Begin!
The match between Ishiyama and the 6 Holy Knights is here, and this is not your usual volleyball! With their pride and their educational future on the line, the Ishiyama gang puts it all out...
S01E36 The Victory has Finally Arrived
Kiriya, the man who scarred Miki and tried to attack Oga in the past shows up at the volleyball match. He declares that he is seeking revenge on Oga, and has taken hostages at the...
S01E37 This Man is a Teacher
Baby Be'el is having a great time at a railroad crossing and wishes Oga to sing with him. Oga, however, is thinking about the Izuma's words about demon powers. Aoi, who is happens to be...
S01E38 The Sibling Rivalry Has Begun
Oga attempts to explain the whole situation to Aoi, but him and Furuichi get stuck on remember BabyBeel's name. Not long after, a demon maid servent who looks similar to Hilda named Yolda appears, and...
S01E39 His Brother Was a Crybaby
Before destroying humanity, Lord En wants to experience everything in the human world. As Lord En is a huge fan of games and the like, he is drawn to the game centres and amusement parks...
S01E40 No Shirt, No Shoes, No Assassins
It's revealed that Tojo and Suzuka know each other from the past, as they both underwent training from Saotome. Izumo and Tojo have a fight after school and Izumo reveals some of his demon powers....
S01E41 On the Brink! What'll We Do?
Whilst everything is in commotion, Lord En continues his tour of the human world and is now in Akihabara. As usual, he also cries due the maids being mistaken for cosplayers and he feels left...
S01E42 It's Time to Train
Hilda recovers and apologizes for everything and being unable to help. Oga decides to become stronger in order to protect everyone and so seeks for Aoi's grandfather to train him. Oga's younger sister is revealed...
S01E43 Where Did the Older Brother Disappear To?
Lamia asks Fruichi to find Baby Beel's brother but when they went to the game center, they find Kanzaki,Himekawa, and Yuko. Furuichi asks them for help. Meanwhile Aoi and Oga went for training to be...
S01E44 I Have to Get Stronger
Oga begins his training with Ittousai while Furuichi and Lamia enlists the help of their Ishiyama classmates to search for Lord En. Can Oga and Beel complete their training in time and will Furuichi and...
S01E45 There's One Day and 1 Hour Left Until the Game
Furuichi's group go to Himekawa's home, to start searching for En in online games. When they arrive they find the place is a giant skyscraper building, with several rooms dedicated to gaming. Most of the...
S01E46 Burn, Super Combination!
The episode opens with a distinct sci-fi feel, before moving into the game, where the Ishiyama group are in the middle of getting their asses handed to them. They are unable to do anything against...
S01E47 Sorry to Have Kept You Waiting
The show opens seeing the 2 pillars who got beaten in jail, and 2 other pillars talking to them. One is Lamia's mom. They then cut to the main gang who are tired from playing...
S01E48 I'm His Parent
After Oga came back from his training he introduce his new technique called the "Zebul Emblem" and "Super Milk Time" (He learn it while he was training with Saotome and Black Baby Beel and Baby...
S01E49 Beelzebub's New Year's Special! Beelbeel Journey to the West!
A tired and thirsty Furuichi finds himself in a desert, accompanied by Oga, Baby Beel and Kunieda. Furuichi asks what the hell is happening but Oga replies that this is Journey to the West, that...
S01E50 Today I'm Different on the Inside
Due to the after effects of Super Milk Time, Baby Beel and Oga have swapped bodies. In order to return things back to normal, they try to look for Saotome-Sensei to see if he knows...
S01E51 Komainu-sama is Watching You
Oga is trying to think of a way to perfect Super Milk Time before they're attacked again whilst Nene and the rest of the Red Tails are trying to get Aoi back into the group...
S01E52 And Then There Were No Delinquents
It's the coldest day of Winter and St.Ishiyama is closed, however everyone from Ishiyama has still come to school as they were not informed of this until Kazuya and Azusa come in to tell them....
S01E53 Baby Beel's First Conquest / Furuichi Falls in Love
Oga ,Furuichi and their teacher (which was the Spellmaster) was searching for the black version of Baby Beel. Oga thought that it was so bored that it ran away. But actually it was because of...
S01E54 Black Baby Beel Grows Up!
When Black Beel has gone missing, Zenjuro urges Oga, Furuichi, and Beel to look for him before something bad happens. Meanwhile, Himekawa who has kidnapped Black Beel for his close resemblance to a lucky statue...
S01E55 I Have Lost My Pompadour / The Great Demon Lord Has Come
Himekawa introduces himself and tells everyone how he makes his "super cool" pompadour: by hardening it with a hair gel called Pomade. Furuichi ignores him and mentions a man showing up. Himekawa thinks he's referring...
S01E56 Are You a Traitor? / Is This a Job for Men?
Hilda notes that Oga and his friends are acting funny and that they're scheming something bad. Oga and Beel deny this, but do so in such a poor manner that Hilda easily notices they're lying....
S01E57 Won't You Eat a Manju? / Won't You Get in a Mixed Bath?
Koma gets an idea from Oga's Super Milk Time training to switch bodies with Aoi Kunieda by offering her Manju. He has some fun moments with Aoi that gets pervy but he also spends a...
S01E58 Akumano Academy is Open!
Behemoth visits St. Ishiyama to find Oga and Beelzebub, but he gets welcomed by Zenjuro, Ittousai, and the principal. Hilda holds Oga down while they watch the fight. Meanwhile, Furuichi and the delinquents arrive at...
S01E59 We're the Strongest!
While Aoi fights Agiel, Oga and Hilda meet Behemoth and Jabberwock up close and personal. Then, at Akumano Academy, Lord En and quetzalcoatl has the delinquents playing a "game," and at the same time, Oga...
S01E60 I Won't Say Goodbye
It begins with a bunch of Ishiyama delinquents crying and mourning over the loss of Oga and Baby Beel. Their tears stop short by the river when Alaindelon cruises like a speedboat and Oga and...
Cast
Miyuki Sawashiro
Beelbou (voice)
Katsuyuki Konishi
Oga Tatsumi (voice)
Shizuka Itoh
Hilda Garde (voice)
Takahiro Mizushima
Furuichi Takayuki (voice)
Aki Toyosaki
Aoi Kunieda (voice)
Daisuke Hirakawa
Alex Rodriguez Ichirou Shinjou (voice)
Daisuke Kishio
Shintarou Natsume (voice)
Haruna Ikezawa
Shizuka Nanami (voice)
Hiroki Takahashi
Daimao (voice)
Kazuhiro Yamaji
Jabberwock (voice)
Keiichi Nakagawa
Mitsuteru Sakaki (voice)
Kenji Fukuda
Kaname Izuma (voice)
