Iruma runs into his senior Amy Kiriwo in front of the Magical Apparatus Battler again. The Magical Apparatus Battler room is filled with all kinds of strange gadgets. There, Iruma hears about Kiriwo’s dreams. Babyls is about to hold their annual Battler Party where all the new students get to promote the Battler they joined. Sullivan looks forward to seeing Iruma-kun but while he’s at the Thirteens’ Dinner...

The Battlers’ recruiting operation, the Rookie Hunt, had begun. The seniors all come out to try to find worthy first-years to join their groups. What takes place is an immense battle! Iruma and his friends somehow make it through, but then decide to check out the various Battlers on campus. But then suddenly, Iruma’s ring goes berserk, causing him to run into a senior...

Part A: A new teacher named Balse Robin, who is quite innocent and fearful of nothing, arrives! His first lesson involves interacting with familiars. Iruma turns pale at the thought of this lesson since his familiar happens to be Kalego, but... Part B: Iruma decides his next goal now that he’s moved up a rank. Apparently, there are groups at Babyls where like-minded demons gather called Battlers. Iruma shows some interest in Battlers, but then is greeted by a terrifying sound...

The day of the rank promotion test involving execution cannonball had arrived. Iruma is ready for the match, but then ends up on different teams with Asmodeus. Despite that, the game continues with all his other classmates using their various forms of magic to play the game. Will Iruma be able to show off the results of his training?! And who will win? Iruma or Asmodeus?

Suzuki Iruma is too nice and just doesn’t know how to say no. One day, he somehow gets dragged into the netherworld where the demons live. He arrives at the great demon Sullivan’s mansion where he is asked to do the unthinkable... and ends up becoming Sullivan’s grandson! He is quickly enrolled into the Demon School Babyls where Sullivan serves as chair-demon. Iruma begins his super exciting school life at demon school while trying to conceal the fact that he’s a human!

As the family trip draws to a close, the siblings each come to terms with their bonds in their own way.

As the family trip draws to a close, the siblings each come to terms with their bonds in their own way.

As the family trip draws to a close, the siblings each come to terms with their bonds in their own way.

As the family trip draws to a close, the siblings each come to terms with their bonds in their own way.

The girls find themselves in the past facing immediate danger when a handsome young 'B' comes to their rescue.

The sextuplets suddenly get a craving for watermelon.

Eita adds a new rule to the game.

A young detective lockpicks his way into Nagumo's office and asks to work for him.

Hiro is kidnapped and Nagi immediately sets out to save her.

Chizuru and Kazuya are invited to a party in the super-fancy area of Daikanyama.

Aharen is in charge of the class's exhibit for the culture festival, leaving Raido to ponder the future.

It's time for Aharen and Raido to graduate high school and see just what the future holds.

Shiori's here and on a mission! How will Iori handle this situation?

Hairi meets a lone girl on the island.

Wada and Yamamoto tackle claw machines, toilet paper, reader-insert fanfiction, and a bowl of spicy udon.