Oga Tatsumi is a first year student in Ishiyama High, a notorious school for delinquents. One day he sees a man floating by, and the man suddenly splits in half to reveal a baby boy inside!
Episode 1 - I Picked up the Demon
Episode 2 - Say Hi to the BoB Brawler
Episode 3 - Are there any strong, ruthless bastards around here?
Episode 4 - There Is 1 Second Before the Demon Lord's Floods Burst Forth
Episode 5 - There is Nothing that Money Can't Buy
Episode 6 - Toys Have Arrived from the Demon World/We Played Doctor
Episode 7 - Even the Demon Lord Makes his Park Debut
Episode 8 - We Met Again
Episode 9 - Love is a Hurricane
Episode 10 - A Disciple is Gained
Episode 11 - There was something money couldn't buy
Episode 12 - You won't get to sleep tonight
Episode 13 - Baby Beel's Assessment Test/Dear Great Demon Lord
Episode 14 - Is there a Special Move?
Episode 15 - The Delinquents have Changed into Swimsuits
Episode 16 - You're Not a Bad Specimen of a Man
Episode 17 - How About Some Demon World Homework?
Episode 18 - I've Quit Being the BoB Brawler
Episode 19 - The Doctor has Arrived
Episode 20 - Everyone Assemble
Episode 21 - Who Do You Think Is Ishiyama's Strongest?
Episode 22 - Secluded Mountain Training
Episode 23 - Are you Kidding Me? The Demon World
Episode 24 - We're back, Demon World!
Episode 25 - The New Term Has Started
Episode 26 - May I Call You Brother?
Episode 27 - Called a Magical Girl
Episode 28 - Let's all get physicals
Episode 29 - What Are the 6 Holy Knights?
Episode 30 - Who Are the 6 Holy Knights?
Episode 31 - No Conclusion Was Reached
Episode 32 - What did the transfer student do?
Episode 33 - There are Wounds in the Past
Episode 34 - Maids Run Amok
Episode 35 - Time for the Game to Begin
Episode 36 - Finally, the Deciding Battle!
Episode 37 - That Man was a Teacher
Episode 38 - The Sibling Rivalry Has Begun
Episode 39 - His Brother Was a Crybaby
Episode 40 - No Shoes, No Shirt, No Assassins
Episode 41 - On the Brink! What'll We Do?!
Episode 42 - It's Time for Training
Episode 43 - Where Did Brother Disappear to?
Episode 44 - I Must Become Stronger
Episode 45 - Play Games at Most One Hour a Day
Episode 46 - Super Burning Combination
Episode 47 - Sorry to Keep You Waiting
Episode 48 - I Am The Parent!
Episode 49 - Beelbeel Journey to the West
Episode 50 - Today I'm Different on the Inside
Episode 51 - Komainu-sama is Watching You
Episode 52 - And Then There Were No Delinquents
Episode 53 - Baby Beel's First Conquest\Furuichi Falls in Love
Episode 54 - Black Baby Beel Grows Up
Episode 55 - I Have Lost My Pompadour. The Great Demon Lord Has Come.
Episode 56 - Are You a Traitor? Is It A Time For Men?
Episode 57 - Won't you Eat a Manju? Won't you Get in a Mixed Bath?
Episode 58 - Akumano Academy is Open
Episode 59 - We're the Strongest!
Episode 60 - I Won't Say Goodbye