St. Ishiyama Arc
The New Term Has Started - Shingakki Hajimarimashita (新学期はじまりました)
Oga and all of his classmates from Ishiyama High transfer to a new school, St. Ishiyama Academy, where they're grouped in the same classroom and introduced to a new self-serving teacher in the most ridiculous ways.
Full Plot Summary
"Hey!!!" by FLOW
Furuichi runs to Oga's bedroom where Oga and Beelzebub still sleep. He reveals a letter of the new school to them once they awake.
Oga complains about transferring to another school, but Furuichi reminds him that he destroyed the other school. Meanwhile, the principal mopes for his school. A female voice narrates about the benefits of St. Ishiyama Academy. Once they arrive at the new school, Furuichi stares at a line of girls walking past them. He cries; another pair of school girls think he is a pervert. When Furuichi says hi, the girls run off in fear.
Arriving at the "special class," Furuichi and Oga find out their new classmates. Outside of the class, Hilda and Alaindelon observe the class. Hilda notices that Oga's class consists of a mixed group of 1st, 2nd, and 3rd years. Nene and Kanzaki start to fight until Aoi stops them. Furuichi observes Kanzaki and Himekawa talking to Beelzebub. Also, Aoi notices Oga looks cute when he sleeps.
The new teacher arrives and tells them to shut up; he writes his name on the chalkboard. His name is Sadohara. As he tries to intimidate his class, Sadohara picks on Toujo since he is the strongest. Sadohara figures to break him to make the class fall in line. Once Sadohara challenges Toujo to an arm wrestling match, Toujo easily sends his teacher crashing to the chalkboard. After Sadohara has his arm broken, he attempts to pick Oga due to him being an easy target. When Sadohara wakes up baby Beel, the class leaves the classroom before baby Beel shocks them.
Outside of class, Yamamura Kazuya sneaks around the corner. He finds the special class and a warning the says "Normal classmates stay away." Kazuya observes Red Tail coming out with Aoi coming out last. As he waits impatiently, Azusa freaks him out by crawling on all fours. She happily greets him, and she informs him that they cannot be here. After Azusa and Kazuya head outside, Kazuya explains that he looks up to delinquents. Adding to his statement, Azusa states that Kazuya dyed his hair orange for his summer debut. Kanzaki, Himekawa, and Shiroyama pass by while Kazuya and Azusa watch from a safe point. At the bridge, Oga sneezes, and Furuichi thinks he is getting a cold. Oga tells baby Beelzebub that they will get home to eat because baby Beel's stomach growls. Although Kazuya does not believe Oga looks normal, Azusa thinks Oga is a good father to his baby. Kazuya and Azusa rush, but they bump into Toujo. Toujo asks Kazuya where is JapDonalds, and Azusa answers his question much to Kazuya's relief. Kazuya cannot believe Oga defeated Toujo. As they run to chase Oga, Azusa notices his hand is getting bigger than hers.
Upon arriving at the alley, Kazuya and Azusa find Oga and Furuichi surrounded by skinheads of Teimo Tech. Once the boss tells Oga that he is going to get beaten up, Oga kicks him to the wall. Meanwhile, a skinhead catches Kazuya and Azusa as hostages. He and his gang try to use them as hostages, but Oga and Furuichi do not recognize them. Kazuya thinks he is too weak to help Azusa. A flurry of sparkling pink laser like umbrella beams hit the gang. Aoi warns them to not attack their fellow students. Oga, with a demonic smile, bombards the gang with Burying Punch. Yet, baby Beelzebub, who is hungry, finishes the fight with an electrical attack. Kazuya compares the baby to an Amazon electric eel, and Furuichi thanks Aoi for help. Kazuya begs Oga to train him.
"Nanairo Namida" by Tomato n' Pine